51793018087 has 2 divisors, whose sum is σ = 51793018088. Its totient is φ = 51793018086.

The previous prime is 51793018033. The next prime is 51793018129. The reversal of 51793018087 is 78081039715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51793018087 - 2⁷ = 51793017959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51793018087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51793018007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25896509043 + 25896509044.

It is an arithmetic number, because the mean of its divisors is an integer number (25896509044).

Almost surely, 2^51793018087 is an apocalyptic number.

51793018087 is a deficient number, since it is larger than the sum of its proper divisors (1).

51793018087 is an equidigital number, since it uses as much as digits as its factorization.

51793018087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 51793018087 in words is "fifty-one billion, seven hundred ninety-three million, eighteen thousand, eighty-seven".