612863516731 has 2 divisors, whose sum is σ = 612863516732. Its totient is φ = 612863516730.

The previous prime is 612863516669. The next prime is 612863516767. The reversal of 612863516731 is 137615368216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 612863516731 - 2¹⁵ = 612863483963 is a prime.

It is a super-2 number, since 2×612863516731² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (612863516231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306431758365 + 306431758366.

It is an arithmetic number, because the mean of its divisors is an integer number (306431758366).

Almost surely, 2^612863516731 is an apocalyptic number.

612863516731 is a deficient number, since it is larger than the sum of its proper divisors (1).

612863516731 is an equidigital number, since it uses as much as digits as its factorization.

612863516731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The spelling of 612863516731 in words is "six hundred twelve billion, eight hundred sixty-three million, five hundred sixteen thousand, seven hundred thirty-one".