30975376986 has 12 divisors (see below), whose sum is σ = 67113316842. Its totient is φ = 10325125656.

The previous prime is 30975376973. The next prime is 30975377047. The reversal of 30975376986 is 68967357903.

30975376986 is a `hidden beast` number, since 3 + 0 + 9 + 7 + 537 + 6 + 98 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30794985225 + 180391761 = 175485^2 + 13431^2 .

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, 860427121 + ... + 860427156.

Almost surely, 2^30975376986 is an apocalyptic number.

30975376986 is an abundant number, since it is smaller than the sum of its proper divisors (36137939856).

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

30975376986 is a wasteful number, since it uses less digits than its factorization.

30975376986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720854285 (or 1720854282 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 63.

The spelling of 30975376986 in words is "thirty billion, nine hundred seventy-five million, three hundred seventy-six thousand, nine hundred eighty-six".