79574345761 has 4 divisors (see below), whose sum is σ = 79618287024. Its totient is φ = 79530404500.

The previous prime is 79574345737. The next prime is 79574345791. The reversal of 79574345761 is 16754347597.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16754347597 = 13 ⋅1288795969.

It is a cyclic number.

It is not a de Polignac number, because 79574345761 - 2⁷ = 79574345633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79574345696 and 79574345705.

It is not an unprimeable number, because it can be changed into a prime (79574345791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21967915 + ... + 21971536.

It is an arithmetic number, because the mean of its divisors is an integer number (19904571756).

Almost surely, 2^79574345761 is an apocalyptic number.

It is an amenable number.

79574345761 is a deficient number, since it is larger than the sum of its proper divisors (43941263).

79574345761 is a wasteful number, since it uses less digits than its factorization.

79574345761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43941262.

The product of its digits is 22226400, while the sum is 58.

The spelling of 79574345761 in words is "seventy-nine billion, five hundred seventy-four million, three hundred forty-five thousand, seven hundred sixty-one".