764142445057 has 2 divisors, whose sum is σ = 764142445058. Its totient is φ = 764142445056.

The previous prime is 764142445019. The next prime is 764142445093. The reversal of 764142445057 is 750544241467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 402798392896 + 361344052161 = 634664^2 + 601119^2 .

It is a cyclic number.

It is not a de Polignac number, because 764142445057 - 2⁷ = 764142444929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 764142445057.

It is not a weakly prime, because it can be changed into another prime (764142445357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382071222528 + 382071222529.

It is an arithmetic number, because the mean of its divisors is an integer number (382071222529).

Almost surely, 2^764142445057 is an apocalyptic number.

It is an amenable number.

764142445057 is a deficient number, since it is larger than the sum of its proper divisors (1).

764142445057 is an equidigital number, since it uses as much as digits as its factorization.

764142445057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3763200, while the sum is 49.

The spelling of 764142445057 in words is "seven hundred sixty-four billion, one hundred forty-two million, four hundred forty-five thousand, fifty-seven".