39977112650 has 12 divisors (see below), whose sum is σ = 74357429622. Its totient is φ = 15990845040.

The previous prime is 39977112631. The next prime is 39977112661. The reversal of 39977112650 is 5621177993.

It can be written as a sum of positive squares in 3 ways, for example, as 34911801409 + 5065311241 = 186847^2 + 71171^2 .

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 799542253 = 39977112650 / (3 + 9 + 9 + 7 + 7 + 1 + 1 + 2 + 6 + 5 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399771077 + ... + 399771176.

Almost surely, 2^39977112650 is an apocalyptic number.

39977112650 is a deficient number, since it is larger than the sum of its proper divisors (34380316972).

39977112650 is a wasteful number, since it uses less digits than its factorization.

39977112650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799542265 (or 799542260 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 50.

The spelling of 39977112650 in words is "thirty-nine billion, nine hundred seventy-seven million, one hundred twelve thousand, six hundred fifty".