612094637831 has 2 divisors, whose sum is σ = 612094637832. Its totient is φ = 612094637830.

The previous prime is 612094637813. The next prime is 612094637863. The reversal of 612094637831 is 138736490216.

Together with previous prime (612094637813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612094637831 is a prime.

It is a super-2 number, since 2×612094637831² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 612094637831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612094634831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306047318915 + 306047318916.

It is an arithmetic number, because the mean of its divisors is an integer number (306047318916).

Almost surely, 2^612094637831 is an apocalyptic number.

612094637831 is a deficient number, since it is larger than the sum of its proper divisors (1).

612094637831 is an equidigital number, since it uses as much as digits as its factorization.

612094637831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 612094637831 in words is "six hundred twelve billion, ninety-four million, six hundred thirty-seven thousand, eight hundred thirty-one".