51288237738739 has 2 divisors, whose sum is σ = 51288237738740. Its totient is φ = 51288237738738.

The previous prime is 51288237738713. The next prime is 51288237738809. The reversal of 51288237738739 is 93783773288215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51288237738739 - 2²⁵ = 51288204184307 is a prime.

It is a super-2 number, since 2×51288237738739² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51288237738839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25644118869369 + 25644118869370.

It is an arithmetic number, because the mean of its divisors is an integer number (25644118869370).

Almost surely, 2^{51288237738739} is an apocalyptic number.

51288237738739 is a deficient number, since it is larger than the sum of its proper divisors (1).

51288237738739 is an equidigital number, since it uses as much as digits as its factorization.

51288237738739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 853493760, while the sum is 73.

The spelling of 51288237738739 in words is "fifty-one trillion, two hundred eighty-eight billion, two hundred thirty-seven million, seven hundred thirty-eight thousand, seven hundred thirty-nine".