29931259757713 has 4 divisors (see below), whose sum is σ = 31691922096420. Its totient is φ = 28170597419008.

The previous prime is 29931259757683. The next prime is 29931259757767. The reversal of 29931259757713 is 31775795213992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11237466086289 + 18693793671424 = 3352233^2 + 4323632^2 .

It is not a de Polignac number, because 29931259757713 - 2³³ = 29922669823121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29931259758713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 880331169328 + ... + 880331169361.

It is an arithmetic number, because the mean of its divisors is an integer number (7922980524105).

Almost surely, 2^{29931259757713} is an apocalyptic number.

It is an amenable number.

29931259757713 is a deficient number, since it is larger than the sum of its proper divisors (1760662338707).

29931259757713 is a wasteful number, since it uses less digits than its factorization.

29931259757713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760662338706.

The product of its digits is 225042300, while the sum is 70.

The spelling of 29931259757713 in words is "twenty-nine trillion, nine hundred thirty-one billion, two hundred fifty-nine million, seven hundred fifty-seven thousand, seven hundred thirteen".