1264538096831 has 16 divisors (see below), whose sum is σ = 1311888783744. Its totient is φ = 1218056479584.

The previous prime is 1264538096761. The next prime is 1264538096837. The reversal of 1264538096831 is 1386908354621.

It is a cyclic number.

It is not a de Polignac number, because 1264538096831 - 2³⁸ = 989660189887 is a prime.

It is a super-2 number, since 2×1264538096831² (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 (1264538096837) 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, 1669880 + ... + 2305986.

It is an arithmetic number, because the mean of its divisors is an integer number (81993048984).

Almost surely, 2^{1264538096831} is an apocalyptic number.

1264538096831 is a deficient number, since it is larger than the sum of its proper divisors (47350686913).

1264538096831 is an equidigital number, since it uses as much as digits as its factorization.

1264538096831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636790.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 1264538096831 in words is "one trillion, two hundred sixty-four billion, five hundred thirty-eight million, ninety-six thousand, eight hundred thirty-one".