31877970048 has 48 divisors (see below), whose sum is σ = 91732182750. Its totient is φ = 10625989632.

The previous prime is 31877970037. The next prime is 31877970109. The reversal of 31877970048 is 84007977813.

It can be written as a sum of positive squares in only one way, i.e., 27638397504 + 4239572544 = 166248^2 + 65112^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 31877969976 and 31877970003.

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, 13834773 + ... + 13837076.

Almost surely, 2^31877970048 is an apocalyptic number.

It is an amenable number.

31877970048 is an abundant number, since it is smaller than the sum of its proper divisors (59854212702).

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

31877970048 is a wasteful number, since it uses less digits than its factorization.

31877970048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27671869 (or 27671854 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 31877970048 in words is "thirty-one billion, eight hundred seventy-seven million, nine hundred seventy thousand, forty-eight".