39649169934 has 48 divisors (see below), whose sum is σ = 94192029360. Its totient is φ = 11953898880.

The previous prime is 39649169909. The next prime is 39649169951. The reversal of 39649169934 is 43996194693.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 469239 + ... + 547250.

It is an arithmetic number, because the mean of its divisors is an integer number (1962333945).

Almost surely, 2^39649169934 is an apocalyptic number.

39649169934 is an abundant number, since it is smaller than the sum of its proper divisors (54542859426).

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

39649169934 is a wasteful number, since it uses less digits than its factorization.

39649169934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016705 (or 1016702 counting only the distinct ones).

The product of its digits is 34012224, while the sum is 63.

The spelling of 39649169934 in words is "thirty-nine billion, six hundred forty-nine million, one hundred sixty-nine thousand, nine hundred thirty-four".