3656481276 has 48 divisors (see below), whose sum is σ = 9910476800. Its totient is φ = 1027581120.

The previous prime is 3656481263. The next prime is 3656481287. The reversal of 3656481276 is 6721846563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351676 + ... + 361923.

Almost surely, 2^3656481276 is an apocalyptic number.

It is an amenable number.

3656481276 is an abundant number, since it is smaller than the sum of its proper divisors (6253995524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3656481276 is a wasteful number, since it uses less digits than its factorization.

3656481276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713674 (or 713672 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 3656481276 is about 60468.8454991494. The cubic root of 3656481276 is about 1540.5925189476.

The spelling of 3656481276 in words is "three billion, six hundred fifty-six million, four hundred eighty-one thousand, two hundred seventy-six".