31681404858000 has 160 divisors (see below), whose sum is σ = 102659334560640. Its totient is φ = 8405489164800.

The previous prime is 31681404857959. The next prime is 31681404858043. The reversal of 31681404858000 is 85840418613.

It is a super-2 number, since 2×31681404858000² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 12219610 + ... + 14583609.

It is an arithmetic number, because the mean of its divisors is an integer number (641620841004).

Almost surely, 2^{31681404858000} is an apocalyptic number.

31681404858000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31681404858000 is an abundant number, since it is smaller than the sum of its proper divisors (70977929702640).

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

31681404858000 is a wasteful number, since it uses less digits than its factorization.

31681404858000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26803442 (or 26803426 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 31681404858000 in words is "thirty-one trillion, six hundred eighty-one billion, four hundred four million, eight hundred fifty-eight thousand".