51333870877 has 2 divisors, whose sum is σ = 51333870878. Its totient is φ = 51333870876.

The previous prime is 51333870869. The next prime is 51333870941. The reversal of 51333870877 is 77807833315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51211237401 + 122633476 = 226299^2 + 11074^2 .

It is a cyclic number.

It is not a de Polignac number, because 51333870877 - 2³ = 51333870869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51333874877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25666935438 + 25666935439.

It is an arithmetic number, because the mean of its divisors is an integer number (25666935439).

Almost surely, 2^51333870877 is an apocalyptic number.

It is an amenable number.

51333870877 is a deficient number, since it is larger than the sum of its proper divisors (1).

51333870877 is an equidigital number, since it uses as much as digits as its factorization.

51333870877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2963520, while the sum is 52.

The spelling of 51333870877 in words is "fifty-one billion, three hundred thirty-three million, eight hundred seventy thousand, eight hundred seventy-seven".