76486677769 has 2 divisors, whose sum is σ = 76486677770. Its totient is φ = 76486677768.

The previous prime is 76486677749. The next prime is 76486677793. The reversal of 76486677769 is 96777668467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76460545225 + 26132544 = 276515^2 + 5112^2 .

It is a cyclic number.

It is not a de Polignac number, because 76486677769 - 2⁵ = 76486677737 is a prime.

It is a super-2 number, since 2×76486677769² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76486677719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38243338884 + 38243338885.

It is an arithmetic number, because the mean of its divisors is an integer number (38243338885).

Almost surely, 2^76486677769 is an apocalyptic number.

It is an amenable number.

76486677769 is a deficient number, since it is larger than the sum of its proper divisors (1).

76486677769 is an equidigital number, since it uses as much as digits as its factorization.

76486677769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896168448, while the sum is 73.

The spelling of 76486677769 in words is "seventy-six billion, four hundred eighty-six million, six hundred seventy-seven thousand, seven hundred sixty-nine".