51580877915239 has 2 divisors, whose sum is σ = 51580877915240. Its totient is φ = 51580877915238.

The previous prime is 51580877915233. The next prime is 51580877915297. The reversal of 51580877915239 is 93251977808515.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51580877915239 - 2⁵ = 51580877915207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51580877915233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25790438957619 + 25790438957620.

It is an arithmetic number, because the mean of its divisors is an integer number (25790438957620).

Almost surely, 2^{51580877915239} is an apocalyptic number.

51580877915239 is a deficient number, since it is larger than the sum of its proper divisors (1).

51580877915239 is an equidigital number, since it uses as much as digits as its factorization.

51580877915239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512000, while the sum is 70.

The spelling of 51580877915239 in words is "fifty-one trillion, five hundred eighty billion, eight hundred seventy-seven million, nine hundred fifteen thousand, two hundred thirty-nine".