39785231964 has 24 divisors (see below), whose sum is σ = 93733494400. Its totient is φ = 13132988784.

The previous prime is 39785231957. The next prime is 39785231977. The reversal of 39785231964 is 46913258793.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 16093114 + ... + 16095585.

Almost surely, 2^39785231964 is an apocalyptic number.

It is an amenable number.

39785231964 is an abundant number, since it is smaller than the sum of its proper divisors (53948262436).

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

39785231964 is a wasteful number, since it uses less digits than its factorization.

39785231964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32188809 (or 32188807 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The spelling of 39785231964 in words is "thirty-nine billion, seven hundred eighty-five million, two hundred thirty-one thousand, nine hundred sixty-four".