51002671901 has 2 divisors, whose sum is σ = 51002671902. Its totient is φ = 51002671900.

The previous prime is 51002671891. The next prime is 51002671913. The reversal of 51002671901 is 10917620015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40300562500 + 10702109401 = 200750^2 + 103451^2 .

It is a cyclic number.

It is not a de Polignac number, because 51002671901 - 2¹⁰ = 51002670877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51002671921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25501335950 + 25501335951.

It is an arithmetic number, because the mean of its divisors is an integer number (25501335951).

Almost surely, 2^51002671901 is an apocalyptic number.

It is an amenable number.

51002671901 is a deficient number, since it is larger than the sum of its proper divisors (1).

51002671901 is an equidigital number, since it uses as much as digits as its factorization.

51002671901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 32.

The spelling of 51002671901 in words is "fifty-one billion, two million, six hundred seventy-one thousand, nine hundred one".