76486677793 has 2 divisors, whose sum is σ = 76486677794. Its totient is φ = 76486677792.

The previous prime is 76486677769. The next prime is 76486677847. The reversal of 76486677793 is 39777668467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68362900369 + 8123777424 = 261463^2 + 90132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76486677793 is a prime.

It is not a weakly prime, because it can be changed into another prime (76486677713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38243338896 + 38243338897.

It is an arithmetic number, because the mean of its divisors is an integer number (38243338897).

Almost surely, 2^76486677793 is an apocalyptic number.

It is an amenable number.

76486677793 is a deficient number, since it is larger than the sum of its proper divisors (1).

76486677793 is an equidigital number, since it uses as much as digits as its factorization.

76486677793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448084224, while the sum is 70.

The spelling of 76486677793 in words is "seventy-six billion, four hundred eighty-six million, six hundred seventy-seven thousand, seven hundred ninety-three".