51351531337369 has 12 divisors (see below), whose sum is σ = 54713346055600. Its totient is φ = 48062688687864.

The previous prime is 51351531337297. The next prime is 51351531337391. The reversal of 51351531337369 is 96373313515315.

It is not a de Polignac number, because 51351531337369 - 2⁹ = 51351531336857 is a prime.

It is a super-2 number, since 2×51351531337369² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51351531335369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196030539 + ... + 196292320.

Almost surely, 2^{51351531337369} is an apocalyptic number.

It is an amenable number.

51351531337369 is a deficient number, since it is larger than the sum of its proper divisors (3361814718231).

51351531337369 is an equidigital number, since it uses as much as digits as its factorization.

51351531337369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392323044 (or 392322961 counting only the distinct ones).

The product of its digits is 11481750, while the sum is 55.

The spelling of 51351531337369 in words is "fifty-one trillion, three hundred fifty-one billion, five hundred thirty-one million, three hundred thirty-seven thousand, three hundred sixty-nine".