51701048929 has 2 divisors, whose sum is σ = 51701048930. Its totient is φ = 51701048928.

The previous prime is 51701048921. The next prime is 51701048947. The reversal of 51701048929 is 92984010715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29840835025 + 21860213904 = 172745^2 + 147852^2 .

It is a cyclic number.

It is not a de Polignac number, because 51701048929 - 2³ = 51701048921 is a prime.

It is not a weakly prime, because it can be changed into another prime (51701048921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850524464 + 25850524465.

It is an arithmetic number, because the mean of its divisors is an integer number (25850524465).

Almost surely, 2^51701048929 is an apocalyptic number.

It is an amenable number.

51701048929 is a deficient number, since it is larger than the sum of its proper divisors (1).

51701048929 is an equidigital number, since it uses as much as digits as its factorization.

51701048929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 51701048929 in words is "fifty-one billion, seven hundred one million, forty-eight thousand, nine hundred twenty-nine".