7447064690 has 16 divisors (see below), whose sum is σ = 14435848728. Its totient is φ = 2749685376.

The previous prime is 7447064689. The next prime is 7447064701. The reversal of 7447064690 is 964607447.

It can be written as a sum of positive squares in 4 ways, for example, as 4220711089 + 3226353601 = 64967^2 + 56801^2 .

It is a super-2 number, since 2×7447064690² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 28642427 + ... + 28642686.

Almost surely, 2^7447064690 is an apocalyptic number.

7447064690 is a deficient number, since it is larger than the sum of its proper divisors (6988784038).

7447064690 is a wasteful number, since it uses less digits than its factorization.

7447064690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57285133.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The square root of 7447064690 is about 86296.3770386683. The cubic root of 7447064690 is about 1952.8177270263.

The spelling of 7447064690 in words is "seven billion, four hundred forty-seven million, sixty-four thousand, six hundred ninety".