39678169434 has 64 divisors (see below), whose sum is σ = 81387171840. Its totient is φ = 12891960000.

The previous prime is 39678169381. The next prime is 39678169441. The reversal of 39678169434 is 43496187693.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38188287 + ... + 38189325.

It is an arithmetic number, because the mean of its divisors is an integer number (1271674560).

Almost surely, 2^39678169434 is an apocalyptic number.

39678169434 is an abundant number, since it is smaller than the sum of its proper divisors (41709002406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39678169434 is a wasteful number, since it uses less digits than its factorization.

39678169434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947.

The product of its digits is 23514624, while the sum is 60.

The spelling of 39678169434 in words is "thirty-nine billion, six hundred seventy-eight million, one hundred sixty-nine thousand, four hundred thirty-four".