51068703361531 has 2 divisors, whose sum is σ = 51068703361532. Its totient is φ = 51068703361530.

The previous prime is 51068703361513. The next prime is 51068703361541. The reversal of 51068703361531 is 13516330786015.

Together with previous prime (51068703361513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51068703361531 - 2¹⁵ = 51068703328763 is a prime.

It is a super-2 number, since 2×51068703361531² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51068703361541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25534351680765 + 25534351680766.

It is an arithmetic number, because the mean of its divisors is an integer number (25534351680766).

Almost surely, 2^{51068703361531} is an apocalyptic number.

51068703361531 is a deficient number, since it is larger than the sum of its proper divisors (1).

51068703361531 is an equidigital number, since it uses as much as digits as its factorization.

51068703361531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 51068703361531 in words is "fifty-one trillion, sixty-eight billion, seven hundred three million, three hundred sixty-one thousand, five hundred thirty-one".