76764259457 has 2 divisors, whose sum is σ = 76764259458. Its totient is φ = 76764259456.

The previous prime is 76764259417. The next prime is 76764259469. The reversal of 76764259457 is 75495246767.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76476583936 + 287675521 = 276544^2 + 16961^2 .

It is an emirp because it is prime and its reverse (75495246767) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76764259457 - 2⁶ = 76764259393 is a prime.

It is a super-2 number, since 2×76764259457² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 76764259457.

It is not a weakly prime, because it can be changed into another prime (76764259417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38382129728 + 38382129729.

It is an arithmetic number, because the mean of its divisors is an integer number (38382129729).

Almost surely, 2^76764259457 is an apocalyptic number.

It is an amenable number.

76764259457 is a deficient number, since it is larger than the sum of its proper divisors (1).

76764259457 is an equidigital number, since it uses as much as digits as its factorization.

76764259457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88905600, while the sum is 62.

The spelling of 76764259457 in words is "seventy-six billion, seven hundred sixty-four million, two hundred fifty-nine thousand, four hundred fifty-seven".