51678872941 has 2 divisors, whose sum is σ = 51678872942. Its totient is φ = 51678872940.

The previous prime is 51678872851. The next prime is 51678873017. The reversal of 51678872941 is 14927887615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44592768900 + 7086104041 = 211170^2 + 84179^2 .

It is a cyclic number.

It is not a de Polignac number, because 51678872941 - 2²⁵ = 51645318509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51678876941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25839436470 + 25839436471.

It is an arithmetic number, because the mean of its divisors is an integer number (25839436471).

Almost surely, 2^51678872941 is an apocalyptic number.

It is an amenable number.

51678872941 is a deficient number, since it is larger than the sum of its proper divisors (1).

51678872941 is an equidigital number, since it uses as much as digits as its factorization.

51678872941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 58.

The spelling of 51678872941 in words is "fifty-one billion, six hundred seventy-eight million, eight hundred seventy-two thousand, nine hundred forty-one".