39556368136 has 8 divisors (see below), whose sum is σ = 74168190270. Its totient is φ = 19778184064.

The previous prime is 39556368119. The next prime is 39556368151. The reversal of 39556368136 is 63186365593.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 39399868036 + 156500100 = 198494^2 + 12510^2 .

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

It is a super-2 number, since 2×39556368136² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2472273001 + ... + 2472273016.

Almost surely, 2^39556368136 is an apocalyptic number.

It is an amenable number.

39556368136 is a deficient number, since it is larger than the sum of its proper divisors (34611822134).

39556368136 is a wasteful number, since it uses less digits than its factorization.

39556368136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944546023 (or 4944546019 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 55.

The spelling of 39556368136 in words is "thirty-nine billion, five hundred fifty-six million, three hundred sixty-eight thousand, one hundred thirty-six".