31149505679228 has 48 divisors (see below), whose sum is σ = 57822350009760. Its totient is φ = 14632158468096.

The previous prime is 31149505679189. The next prime is 31149505679261. The reversal of 31149505679228 is 82297650594113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112275176 + ... + 112552272.

It is an arithmetic number, because the mean of its divisors is an integer number (1204632291870).

It is a 1-persistent number, because it is pandigital, but 2⋅31149505679228 = 62299011358456 is not.

Almost surely, 2^{31149505679228} is an apocalyptic number.

It is an amenable number.

31149505679228 is a deficient number, since it is larger than the sum of its proper divisors (26672844330532).

31149505679228 is a wasteful number, since it uses less digits than its factorization.

31149505679228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280094 (or 280092 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 62.

The spelling of 31149505679228 in words is "thirty-one trillion, one hundred forty-nine billion, five hundred five million, six hundred seventy-nine thousand, two hundred twenty-eight".