31477755777413 has 16 divisors (see below), whose sum is σ = 36382477285440. Its totient is φ = 26915695161600.

The previous prime is 31477755777367. The next prime is 31477755777431.

31477755777413 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31477755777413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31477755777443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53280458 + ... + 53868011.

It is an arithmetic number, because the mean of its divisors is an integer number (2273904830340).

Almost surely, 2^{31477755777413} is an apocalyptic number.

It is an amenable number.

31477755777413 is a deficient number, since it is larger than the sum of its proper divisors (4904721508027).

31477755777413 is a wasteful number, since it uses less digits than its factorization.

31477755777413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107150068.

The product of its digits is 423536400, while the sum is 68.

The spelling of 31477755777413 in words is "thirty-one trillion, four hundred seventy-seven billion, seven hundred fifty-five million, seven hundred seventy-seven thousand, four hundred thirteen".