31406214024640 has 168 divisors, whose sum is σ = 93688015714272. Its totient is φ = 9939548989440.

The previous prime is 31406214024593. The next prime is 31406214024673. The reversal of 31406214024640 is 4642041260413.

It is a super-2 number, since 2×31406214024640² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31406214024640.

It is a congruent number.

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, 76832596 + ... + 77240275.

It is an arithmetic number, because the mean of its divisors is an integer number (557666760204).

Almost surely, 2^{31406214024640} is an apocalyptic number.

It is an amenable number.

31406214024640 is an abundant number, since it is smaller than the sum of its proper divisors (62281801689632).

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

31406214024640 is a wasteful number, since it uses less digits than its factorization.

31406214024640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154072915 (or 154072898 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 31406214024640 in words is "thirty-one trillion, four hundred six billion, two hundred fourteen million, twenty-four thousand, six hundred forty".