31488622688413 has 4 divisors (see below), whose sum is σ = 34351224751008. Its totient is φ = 28626020625820.

The previous prime is 31488622688377. The next prime is 31488622688489.

31488622688413 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31488622688413 - 2²¹ = 31488620591261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31488622688113) 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, 1431301031281 + ... + 1431301031302.

It is an arithmetic number, because the mean of its divisors is an integer number (8587806187752).

Almost surely, 2^{31488622688413} is an apocalyptic number.

It is an amenable number.

31488622688413 is a deficient number, since it is larger than the sum of its proper divisors (2862602062595).

31488622688413 is a wasteful number, since it uses less digits than its factorization.

31488622688413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862602062594.

The product of its digits is 84934656, while the sum is 64.

The spelling of 31488622688413 in words is "thirty-one trillion, four hundred eighty-eight billion, six hundred twenty-two million, six hundred eighty-eight thousand, four hundred thirteen".