39678902492968 has 32 divisors (see below), whose sum is σ = 74448945801000. Its totient is φ = 19825851801600.

The previous prime is 39678902492963. The next prime is 39678902493011. The reversal of 39678902492968 is 86929420987693.

39678902492968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 39582242439364 + 96660053604 = 6291442^2 + 310902^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39678902492891 and 39678902492900.

It is not an unprimeable number, because it can be changed into a prime (39678902492963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232623298 + ... + 232793806.

Almost surely, 2^{39678902492968} is an apocalyptic number.

It is an amenable number.

39678902492968 is a deficient number, since it is larger than the sum of its proper divisors (34770043308032).

39678902492968 is a wasteful number, since it uses less digits than its factorization.

39678902492968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190285 (or 190281 counting only the distinct ones).

The product of its (nonzero) digits is 5079158784, while the sum is 82.

The spelling of 39678902492968 in words is "thirty-nine trillion, six hundred seventy-eight billion, nine hundred two million, four hundred ninety-two thousand, nine hundred sixty-eight".