1052791317631 has 4 divisors (see below), whose sum is σ = 1108201387000. Its totient is φ = 997381248264.

The previous prime is 1052791317623. The next prime is 1052791317667. The reversal of 1052791317631 is 1367131972501.

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

It is a cyclic number.

It is not a de Polignac number, because 1052791317631 - 2³ = 1052791317623 is a prime.

It is a super-2 number, since 2×1052791317631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052791317601) 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, 27705034656 + ... + 27705034693.

It is an arithmetic number, because the mean of its divisors is an integer number (277050346750).

Almost surely, 2^{1052791317631} is an apocalyptic number.

1052791317631 is a deficient number, since it is larger than the sum of its proper divisors (55410069369).

1052791317631 is an equidigital number, since it uses as much as digits as its factorization.

1052791317631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55410069368.

The product of its (nonzero) digits is 238140, while the sum is 46.

The spelling of 1052791317631 in words is "one trillion, fifty-two billion, seven hundred ninety-one million, three hundred seventeen thousand, six hundred thirty-one".