51637873879 has 2 divisors, whose sum is σ = 51637873880. Its totient is φ = 51637873878.

The previous prime is 51637873829. The next prime is 51637873883. The reversal of 51637873879 is 97837873615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51637873879 - 2¹⁵ = 51637841111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51637873879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51637873829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25818936939 + 25818936940.

It is an arithmetic number, because the mean of its divisors is an integer number (25818936940).

Almost surely, 2^51637873879 is an apocalyptic number.

51637873879 is a deficient number, since it is larger than the sum of its proper divisors (1).

51637873879 is an equidigital number, since it uses as much as digits as its factorization.

51637873879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53343360, while the sum is 64.

The spelling of 51637873879 in words is "fifty-one billion, six hundred thirty-seven million, eight hundred seventy-three thousand, eight hundred seventy-nine".