51414310021577 has 2 divisors, whose sum is σ = 51414310021578. Its totient is φ = 51414310021576.

The previous prime is 51414310021553. The next prime is 51414310021777. The reversal of 51414310021577 is 77512001341415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31356908876176 + 20057401145401 = 5599724^2 + 4478549^2 .

It is a cyclic number.

It is not a de Polignac number, because 51414310021577 - 2¹⁶ = 51414309956041 is a prime.

It is not a weakly prime, because it can be changed into another prime (51414310021507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25707155010788 + 25707155010789.

It is an arithmetic number, because the mean of its divisors is an integer number (25707155010789).

Almost surely, 2^{51414310021577} is an apocalyptic number.

It is an amenable number.

51414310021577 is a deficient number, since it is larger than the sum of its proper divisors (1).

51414310021577 is an equidigital number, since it uses as much as digits as its factorization.

51414310021577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 51414310021577 in words is "fifty-one trillion, four hundred fourteen billion, three hundred ten million, twenty-one thousand, five hundred seventy-seven".