51677072093 has 2 divisors, whose sum is σ = 51677072094. Its totient is φ = 51677072092.

The previous prime is 51677072089. The next prime is 51677072123. The reversal of 51677072093 is 39027077615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50858368324 + 818703769 = 225518^2 + 28613^2 .

It is a cyclic number.

It is not a de Polignac number, because 51677072093 - 2² = 51677072089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51677072053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25838536046 + 25838536047.

It is an arithmetic number, because the mean of its divisors is an integer number (25838536047).

Almost surely, 2^51677072093 is an apocalyptic number.

It is an amenable number.

51677072093 is a deficient number, since it is larger than the sum of its proper divisors (1).

51677072093 is an equidigital number, since it uses as much as digits as its factorization.

51677072093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 47.

The spelling of 51677072093 in words is "fifty-one billion, six hundred seventy-seven million, seventy-two thousand, ninety-three".