39908622056 has 8 divisors (see below), whose sum is σ = 74828666370. Its totient is φ = 19954311024.

The previous prime is 39908622053. The next prime is 39908622077. The reversal of 39908622056 is 65022680993.

It can be written as a sum of positive squares in only one way, i.e., 37043161156 + 2865460900 = 192466^2 + 53530^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×39908622056² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39908621995 and 39908622013.

It is not an unprimeable number, because it can be changed into a prime (39908622053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494288871 + ... + 2494288886.

Almost surely, 2^39908622056 is an apocalyptic number.

It is an amenable number.

39908622056 is a deficient number, since it is larger than the sum of its proper divisors (34920044314).

39908622056 is a wasteful number, since it uses less digits than its factorization.

39908622056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988577763 (or 4988577759 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 39908622056 in words is "thirty-nine billion, nine hundred eight million, six hundred twenty-two thousand, fifty-six".