3625617656 has 16 divisors (see below), whose sum is σ = 6858194400. Its totient is φ = 1796765824.

The previous prime is 3625617649. The next prime is 3625617691. The reversal of 3625617656 is 6567165263.

It is a self number, because there is not a number n which added to its sum of digits gives 3625617656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004416 + ... + 2006223.

It is an arithmetic number, because the mean of its divisors is an integer number (428637150).

Almost surely, 2^3625617656 is an apocalyptic number.

It is an amenable number.

3625617656 is a deficient number, since it is larger than the sum of its proper divisors (3232576744).

3625617656 is a wasteful number, since it uses less digits than its factorization.

3625617656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010758 (or 4010754 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 47.

The square root of 3625617656 is about 60213.1020293756. The cubic root of 3625617656 is about 1536.2456554707.

The spelling of 3625617656 in words is "three billion, six hundred twenty-five million, six hundred seventeen thousand, six hundred fifty-six".