51077040823 has 2 divisors, whose sum is σ = 51077040824. Its totient is φ = 51077040822.

The previous prime is 51077040809. The next prime is 51077040857. The reversal of 51077040823 is 32804077015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51077040823 - 2¹³ = 51077032631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51077040893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25538520411 + 25538520412.

It is an arithmetic number, because the mean of its divisors is an integer number (25538520412).

Almost surely, 2^51077040823 is an apocalyptic number.

51077040823 is a deficient number, since it is larger than the sum of its proper divisors (1).

51077040823 is an equidigital number, since it uses as much as digits as its factorization.

51077040823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 51077040823 in words is "fifty-one billion, seventy-seven million, forty thousand, eight hundred twenty-three".