76725615497 has 2 divisors, whose sum is σ = 76725615498. Its totient is φ = 76725615496.

The previous prime is 76725615487. The next prime is 76725615511. The reversal of 76725615497 is 79451652767.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51392436601 + 25333178896 = 226699^2 + 159164^2 .

It is a cyclic number.

It is not a de Polignac number, because 76725615497 - 2⁴ = 76725615481 is a prime.

It is not a weakly prime, because it can be changed into another prime (76725615487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38362807748 + 38362807749.

It is an arithmetic number, because the mean of its divisors is an integer number (38362807749).

Almost surely, 2^76725615497 is an apocalyptic number.

It is an amenable number.

76725615497 is a deficient number, since it is larger than the sum of its proper divisors (1).

76725615497 is an equidigital number, since it uses as much as digits as its factorization.

76725615497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22226400, while the sum is 59.

The spelling of 76725615497 in words is "seventy-six billion, seven hundred twenty-five million, six hundred fifteen thousand, four hundred ninety-seven".