57780764999 has 2 divisors, whose sum is σ = 57780765000. Its totient is φ = 57780764998.

The previous prime is 57780764969. The next prime is 57780765037. The reversal of 57780764999 is 99946708775.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57780764999 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57780764969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28890382499 + 28890382500.

It is an arithmetic number, because the mean of its divisors is an integer number (28890382500).

Almost surely, 2^57780764999 is an apocalyptic number.

57780764999 is a deficient number, since it is larger than the sum of its proper divisors (1).

57780764999 is an equidigital number, since it uses as much as digits as its factorization.

57780764999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240045120, while the sum is 71.

The spelling of 57780764999 in words is "fifty-seven billion, seven hundred eighty million, seven hundred sixty-four thousand, nine hundred ninety-nine".