31406486900 has 36 divisors (see below), whose sum is σ = 68411267232. Its totient is φ = 12514817760.

The previous prime is 31406486879. The next prime is 31406486921. The reversal of 31406486900 is 968460413.

It is an interprime number because it is at equal distance from previous prime (31406486879) and next prime (31406486921).

It is a super-2 number, since 2×31406486900² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570782 + ... + 623381.

Almost surely, 2^31406486900 is an apocalyptic number.

It is an amenable number.

31406486900 is an abundant number, since it is smaller than the sum of its proper divisors (37004780332).

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

31406486900 is a wasteful number, since it uses less digits than its factorization.

31406486900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194440 (or 1194433 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 31406486900 in words is "thirty-one billion, four hundred six million, four hundred eighty-six thousand, nine hundred".