39977861316 has 24 divisors (see below), whose sum is σ = 98191238880. Its totient is φ = 12624587712.

The previous prime is 39977861311. The next prime is 39977861323. The reversal of 39977861316 is 61316877993.

It is a self number, because there is not a number n which added to its sum of digits gives 39977861316.

It is not an unprimeable number, because it can be changed into a prime (39977861311) by changing a digit.

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, 87670521 + ... + 87670976.

It is an arithmetic number, because the mean of its divisors is an integer number (4091301620).

Almost surely, 2^39977861316 is an apocalyptic number.

It is an amenable number.

39977861316 is an abundant number, since it is smaller than the sum of its proper divisors (58213377564).

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

39977861316 is a wasteful number, since it uses less digits than its factorization.

39977861316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175341523 (or 175341521 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 60.

The spelling of 39977861316 in words is "thirty-nine billion, nine hundred seventy-seven million, eight hundred sixty-one thousand, three hundred sixteen".