766674309953 has 2 divisors, whose sum is σ = 766674309954. Its totient is φ = 766674309952.

The previous prime is 766674309937. The next prime is 766674310027. The reversal of 766674309953 is 359903476667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 577163842369 + 189510467584 = 759713^2 + 435328^2 .

It is a cyclic number.

It is not a de Polignac number, because 766674309953 - 2⁴ = 766674309937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 766674309953.

It is not a weakly prime, because it can be changed into another prime (766674309253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383337154976 + 383337154977.

It is an arithmetic number, because the mean of its divisors is an integer number (383337154977).

Almost surely, 2^766674309953 is an apocalyptic number.

It is an amenable number.

766674309953 is a deficient number, since it is larger than the sum of its proper divisors (1).

766674309953 is an equidigital number, since it uses as much as digits as its factorization.

766674309953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 154314720, while the sum is 65.

The spelling of 766674309953 in words is "seven hundred sixty-six billion, six hundred seventy-four million, three hundred nine thousand, nine hundred fifty-three".