766574222475679 has 2 divisors, whose sum is σ = 766574222475680. Its totient is φ = 766574222475678.

The previous prime is 766574222475667. The next prime is 766574222475727. The reversal of 766574222475679 is 976574222475667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 766574222475679 - 2⁹ = 766574222475167 is a prime.

It is a super-2 number, since 2×766574222475679² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 766574222475599 and 766574222475608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (766574222475179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383287111237839 + 383287111237840.

It is an arithmetic number, because the mean of its divisors is an integer number (383287111237840).

Almost surely, 2^{766574222475679} is an apocalyptic number.

766574222475679 is a deficient number, since it is larger than the sum of its proper divisors (1).

766574222475679 is an equidigital number, since it uses as much as digits as its factorization.

766574222475679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14936140800, while the sum is 79.

The spelling of 766574222475679 in words is "seven hundred sixty-six trillion, five hundred seventy-four billion, two hundred twenty-two million, four hundred seventy-five thousand, six hundred seventy-nine".