31380268860 has 96 divisors (see below), whose sum is σ = 97653534720. Its totient is φ = 8365840704.

The previous prime is 31380268853. The next prime is 31380268883. The reversal of 31380268860 is 6886208313.

31380268860 is a `hidden beast` number, since 3 + 1 + 380 + 268 + 8 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3433617 + ... + 3442743.

It is an arithmetic number, because the mean of its divisors is an integer number (1017224320).

Almost surely, 2^31380268860 is an apocalyptic number.

31380268860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31380268860 is an abundant number, since it is smaller than the sum of its proper divisors (66273265860).

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

31380268860 is a wasteful number, since it uses less digits than its factorization.

31380268860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15512 (or 15504 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 31380268860 in words is "thirty-one billion, three hundred eighty million, two hundred sixty-eight thousand, eight hundred sixty".