31504685889153 has 32 divisors (see below), whose sum is σ = 46818679501440. Its totient is φ = 18727015449600.

The previous prime is 31504685889139. The next prime is 31504685889197. The reversal of 31504685889153 is 35198858640513.

It is not a de Polignac number, because 31504685889153 - 2⁴ = 31504685889137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31504685889133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112361851 + ... + 112641887.

It is an arithmetic number, because the mean of its divisors is an integer number (1463083734420).

Almost surely, 2^{31504685889153} is an apocalyptic number.

It is an amenable number.

31504685889153 is a deficient number, since it is larger than the sum of its proper divisors (15313993612287).

31504685889153 is a wasteful number, since it uses less digits than its factorization.

31504685889153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396177.

The product of its (nonzero) digits is 124416000, while the sum is 66.

The spelling of 31504685889153 in words is "thirty-one trillion, five hundred four billion, six hundred eighty-five million, eight hundred eighty-nine thousand, one hundred fifty-three".