39977912970 has 24 divisors (see below), whose sum is σ = 103942573956. Its totient is φ = 10660776768.

The previous prime is 39977912969. The next prime is 39977913011. The reversal of 39977912970 is 7921977993.

39977912970 is a `hidden beast` number, since 399 + 77 + 91 + 2 + 97 + 0 = 666.

39977912970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39350260161 + 627652809 = 198369^2 + 25053^2 .

It is a junction number, because it is equal to n+sod(n) for n = 39977912898 and 39977912907.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222099427 + ... + 222099606.

Almost surely, 2^39977912970 is an apocalyptic number.

39977912970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39977912970 is an abundant number, since it is smaller than the sum of its proper divisors (63964660986).

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

39977912970 is a wasteful number, since it uses less digits than its factorization.

39977912970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444199046 (or 444199043 counting only the distinct ones).

The product of its (nonzero) digits is 13502538, while the sum is 63.

The spelling of 39977912970 in words is "thirty-nine billion, nine hundred seventy-seven million, nine hundred twelve thousand, nine hundred seventy".