9977370187912 has 16 divisors (see below), whose sum is σ = 18963837173340. Its totient is φ = 4920346941696.

The previous prime is 9977370187879. The next prime is 9977370187963. The reversal of 9977370187912 is 2197810737799.

It can be written as a sum of positive squares in 2 ways, for example, as 8953416435076 + 1023953752836 = 2992226^2 + 1011906^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8542268413 + ... + 8542269580.

Almost surely, 2^{9977370187912} is an apocalyptic number.

It is an amenable number.

9977370187912 is a deficient number, since it is larger than the sum of its proper divisors (8986466985428).

9977370187912 is a wasteful number, since it uses less digits than its factorization.

9977370187912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17084538072 (or 17084538068 counting only the distinct ones).

The product of its (nonzero) digits is 84015792, while the sum is 70.

The spelling of 9977370187912 in words is "nine trillion, nine hundred seventy-seven billion, three hundred seventy million, one hundred eighty-seven thousand, nine hundred twelve".