2621678732 has 12 divisors (see below), whose sum is σ = 4857816600. Its totient is φ = 1233731136.

The previous prime is 2621678723. The next prime is 2621678743. The reversal of 2621678732 is 2378761262.

It is a super-2 number, since 2×2621678732² = 13746398747642255648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19276982 + ... + 19277117.

It is an arithmetic number, because the mean of its divisors is an integer number (404818050).

Almost surely, 2^2621678732 is an apocalyptic number.

It is an amenable number.

2621678732 is a deficient number, since it is larger than the sum of its proper divisors (2236137868).

2621678732 is a wasteful number, since it uses less digits than its factorization.

2621678732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38554120 (or 38554118 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 2621678732 is about 51202.3313141111. The cubic root of 2621678732 is about 1378.8800568361.

The spelling of 2621678732 in words is "two billion, six hundred twenty-one million, six hundred seventy-eight thousand, seven hundred thirty-two".