77348500051 has 2 divisors, whose sum is σ = 77348500052. Its totient is φ = 77348500050.

The previous prime is 77348500007. The next prime is 77348500063. The reversal of 77348500051 is 15000584377.

It is a strong prime.

It is an emirp because it is prime and its reverse (15000584377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77348500051 - 2⁷ = 77348499923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77348499977 and 77348500013.

It is not a weakly prime, because it can be changed into another prime (77348500451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38674250025 + 38674250026.

It is an arithmetic number, because the mean of its divisors is an integer number (38674250026).

Almost surely, 2^77348500051 is an apocalyptic number.

77348500051 is a deficient number, since it is larger than the sum of its proper divisors (1).

77348500051 is an equidigital number, since it uses as much as digits as its factorization.

77348500051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 77348500051 in words is "seventy-seven billion, three hundred forty-eight million, five hundred thousand, fifty-one".