31072243742608 has 40 divisors (see below), whose sum is σ = 60432351566328. Its totient is φ = 15476841034752.

The previous prime is 31072243742599. The next prime is 31072243742623. The reversal of 31072243742608 is 80624734227013.

It can be written as a sum of positive squares in 4 ways, for example, as 12240705763584 + 18831537979024 = 3498672^2 + 4339532^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10274260 + ... + 12950092.

Almost surely, 2^{31072243742608} is an apocalyptic number.

It is an amenable number.

31072243742608 is a deficient number, since it is larger than the sum of its proper divisors (29360107823720).

31072243742608 is a wasteful number, since it uses less digits than its factorization.

31072243742608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678611 (or 2678605 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 49.

The spelling of 31072243742608 in words is "thirty-one trillion, seventy-two billion, two hundred forty-three million, seven hundred forty-two thousand, six hundred eight".