31299179917489 has 27 divisors (see below), whose sum is σ = 34928977138713. Its totient is φ = 28025423929800.

The previous prime is 31299179917427. The next prime is 31299179917543. The reversal of 31299179917489 is 98471997199213.

The square root of 31299179917489 is 5594567.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 31299179917489 - 2⁴³ = 22503086895281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31299179927489) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 4123192084 + ... + 4123199674.

Almost surely, 2^{31299179917489} is an apocalyptic number.

31299179917489 is the 5594567-th square number.

31299179917489 is the 2797284-th centered octagonal number.

It is an amenable number.

31299179917489 is a deficient number, since it is larger than the sum of its proper divisors (3629797221224).

31299179917489 is an frugal number, since it uses more digits than its factorization.

31299179917489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15338 (or 7669 counting only the distinct ones).

The product of its digits is 555532992, while the sum is 79.

The spelling of 31299179917489 in words is "thirty-one trillion, two hundred ninety-nine billion, one hundred seventy-nine million, nine hundred seventeen thousand, four hundred eighty-nine".