31675553481420 has 72 divisors (see below), whose sum is σ = 99641123806224. Its totient is φ = 8446814260416.

The previous prime is 31675553481389. The next prime is 31675553481469. The reversal of 31675553481420 is 2418435557613.

It is a happy number.

31675553481420 is a `hidden beast` number, since 3 + 1 + 6 + 7 + 5 + 5 + 534 + 81 + 4 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3258796939 + ... + 3258806658.

Almost surely, 2^{31675553481420} is an apocalyptic number.

31675553481420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31675553481420 is an abundant number, since it is smaller than the sum of its proper divisors (67965570324804).

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

31675553481420 is a wasteful number, since it uses less digits than its factorization.

31675553481420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517603621 (or 6517603607 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 54.

The spelling of 31675553481420 in words is "thirty-one trillion, six hundred seventy-five billion, five hundred fifty-three million, four hundred eighty-one thousand, four hundred twenty".