51026704291 has 2 divisors, whose sum is σ = 51026704292. Its totient is φ = 51026704290.

The previous prime is 51026704279. The next prime is 51026704307. The reversal of 51026704291 is 19240762015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51026704291 - 2⁵ = 51026704259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51026704291.

It is not a weakly prime, because it can be changed into another prime (51026104291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25513352145 + 25513352146.

It is an arithmetic number, because the mean of its divisors is an integer number (25513352146).

Almost surely, 2^51026704291 is an apocalyptic number.

51026704291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51026704291 is an equidigital number, since it uses as much as digits as its factorization.

51026704291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 51026704291 in words is "fifty-one billion, twenty-six million, seven hundred four thousand, two hundred ninety-one".