31490893788398 has 16 divisors (see below), whose sum is σ = 51530650671744. Its totient is φ = 14314015631160.

The previous prime is 31490893788383. The next prime is 31490893788413. The reversal of 31490893788398 is 89388739809413.

It is an interprime number because it is at equal distance from previous prime (31490893788383) and next prime (31490893788413).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14954111 + ... + 16929477.

It is an arithmetic number, because the mean of its divisors is an integer number (3220665666984).

Almost surely, 2^{31490893788398} is an apocalyptic number.

31490893788398 is a deficient number, since it is larger than the sum of its proper divisors (20039756883346).

31490893788398 is a wasteful number, since it uses less digits than its factorization.

31490893788398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700007.

The product of its (nonzero) digits is 2257403904, while the sum is 80.

The spelling of 31490893788398 in words is "thirty-one trillion, four hundred ninety billion, eight hundred ninety-three million, seven hundred eighty-eight thousand, three hundred ninety-eight".