12087934465 has 32 divisors (see below), whose sum is σ = 15240462336. Its totient is φ = 9194619840.

The previous prime is 12087934427. The next prime is 12087934471. The reversal of 12087934465 is 56443978021.

It is a happy number.

12087934465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12087934465 - 2¹³ = 12087926273 is a prime.

It is a super-2 number, since 2×12087934465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1926924 + ... + 1933186.

It is an arithmetic number, because the mean of its divisors is an integer number (476264448).

It is a 2-persistent number, because it is pandigital, and so is 2⋅12087934465 = 24175868930, but 3⋅12087934465 = 36263803395 is not.

Almost surely, 2^12087934465 is an apocalyptic number.

12087934465 is the 89770-th pentagonal number.

It is an amenable number.

12087934465 is a deficient number, since it is larger than the sum of its proper divisors (3152527871).

12087934465 is a wasteful number, since it uses less digits than its factorization.

12087934465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 12087934465 in words is "twelve billion, eighty-seven million, nine hundred thirty-four thousand, four hundred sixty-five".