51744893677 has 2 divisors, whose sum is σ = 51744893678. Its totient is φ = 51744893676.

The previous prime is 51744893671. The next prime is 51744893699. The reversal of 51744893677 is 77639844715.

51744893677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28703475241 + 23041418436 = 169421^2 + 151794^2 .

It is a cyclic number.

It is not a de Polignac number, because 51744893677 - 2⁷ = 51744893549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51744893671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25872446838 + 25872446839.

It is an arithmetic number, because the mean of its divisors is an integer number (25872446839).

Almost surely, 2^51744893677 is an apocalyptic number.

It is an amenable number.

51744893677 is a deficient number, since it is larger than the sum of its proper divisors (1).

51744893677 is an equidigital number, since it uses as much as digits as its factorization.

51744893677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35562240, while the sum is 61.

The spelling of 51744893677 in words is "fifty-one billion, seven hundred forty-four million, eight hundred ninety-three thousand, six hundred seventy-seven".