39385109988 has 72 divisors (see below), whose sum is σ = 113895669888. Its totient is φ = 11241370368.

The previous prime is 39385109987. The next prime is 39385110007. The reversal of 39385109988 is 88990158393.

39385109988 is a `hidden beast` number, since 3 + 9 + 38 + 510 + 9 + 9 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (39385109987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168220 + ... + 327212.

It is an arithmetic number, because the mean of its divisors is an integer number (1581884304).

Almost surely, 2^39385109988 is an apocalyptic number.

It is an amenable number.

39385109988 is an abundant number, since it is smaller than the sum of its proper divisors (74510559900).

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

39385109988 is a wasteful number, since it uses less digits than its factorization.

39385109988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159993 (or 159988 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 39385109988 in words is "thirty-nine billion, three hundred eighty-five million, one hundred nine thousand, nine hundred eighty-eight".