31224638068608 has 64 divisors (see below), whose sum is σ = 83171477116800. Its totient is φ = 10379220407808.

The previous prime is 31224638068607. The next prime is 31224638068693. The reversal of 31224638068608 is 80686083642213.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31224638068607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113113066 + ... + 113388777.

It is an arithmetic number, because the mean of its divisors is an integer number (1299554329950).

Almost surely, 2^{31224638068608} is an apocalyptic number.

It is an amenable number.

31224638068608 is an abundant number, since it is smaller than the sum of its proper divisors (51946839048192).

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

31224638068608 is a wasteful number, since it uses less digits than its factorization.

31224638068608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226502219 (or 226502207 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 57.

The spelling of 31224638068608 in words is "thirty-one trillion, two hundred twenty-four billion, six hundred thirty-eight million, sixty-eight thousand, six hundred eight".