38393613656 has 16 divisors (see below), whose sum is σ = 72104332200. Its totient is φ = 19165791744.

The previous prime is 38393613653. The next prime is 38393613743. The reversal of 38393613656 is 65631639383.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 38393613598 and 38393613607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38393613653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3871625 + ... + 3881528.

Almost surely, 2^38393613656 is an apocalyptic number.

It is an amenable number.

38393613656 is a deficient number, since it is larger than the sum of its proper divisors (33710718544).

38393613656 is a wasteful number, since it uses less digits than its factorization.

38393613656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753778 (or 7753774 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 53.

The spelling of 38393613656 in words is "thirty-eight billion, three hundred ninety-three million, six hundred thirteen thousand, six hundred fifty-six".