76634700091 has 2 divisors, whose sum is σ = 76634700092. Its totient is φ = 76634700090.

The previous prime is 76634700067. The next prime is 76634700119. The reversal of 76634700091 is 19000743667.

It is a weak prime.

It is an emirp because it is prime and its reverse (19000743667) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76634700091 - 2¹¹ = 76634698043 is a prime.

It is not a weakly prime, because it can be changed into another prime (76634700001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38317350045 + 38317350046.

It is an arithmetic number, because the mean of its divisors is an integer number (38317350046).

Almost surely, 2^76634700091 is an apocalyptic number.

76634700091 is a deficient number, since it is larger than the sum of its proper divisors (1).

76634700091 is an equidigital number, since it uses as much as digits as its factorization.

76634700091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 76634700091 in words is "seventy-six billion, six hundred thirty-four million, seven hundred thousand, ninety-one".