76796048641 has 9 divisors (see below), whose sum is σ = 83161752681. Its totient is φ = 70885334832.

The previous prime is 76796048633. The next prime is 76796048653. The reversal of 76796048641 is 14684069767.

The square root of 76796048641 is 277121.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 10623631041 + 66172417600 = 103071^2 + 257240^2 .

It is not a de Polignac number, because 76796048641 - 2³ = 76796048633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76796048741) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3591915 + ... + 3613231.

Almost surely, 2^76796048641 is an apocalyptic number.

76796048641 is the 277121-st square number.

76796048641 is the 138561-st centered octagonal number.

It is an amenable number.

76796048641 is a deficient number, since it is larger than the sum of its proper divisors (6365704040).

76796048641 is an frugal number, since it uses more digits than its factorization.

76796048641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42660 (or 21330 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 58.

The spelling of 76796048641 in words is "seventy-six billion, seven hundred ninety-six million, forty-eight thousand, six hundred forty-one".