76491076481 has 2 divisors, whose sum is σ = 76491076482. Its totient is φ = 76491076480.

The previous prime is 76491076469. The next prime is 76491076561. The reversal of 76491076481 is 18467019467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56720185600 + 19770890881 = 238160^2 + 140609^2 .

It is a cyclic number.

It is not a de Polignac number, because 76491076481 - 2²⁶ = 76423967617 is a prime.

It is a super-2 number, since 2×76491076481² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (76491078481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38245538240 + 38245538241.

It is an arithmetic number, because the mean of its divisors is an integer number (38245538241).

Almost surely, 2^76491076481 is an apocalyptic number.

It is an amenable number.

76491076481 is a deficient number, since it is larger than the sum of its proper divisors (1).

76491076481 is an equidigital number, since it uses as much as digits as its factorization.

76491076481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 76491076481 in words is "seventy-six billion, four hundred ninety-one million, seventy-six thousand, four hundred eighty-one".