79464160561 has 4 divisors (see below), whose sum is σ = 80811010800. Its totient is φ = 78117310324.

The previous prime is 79464160463. The next prime is 79464160591. The reversal of 79464160561 is 16506146497.

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.

It is a cyclic number.

It is not a de Polignac number, because 79464160561 - 2⁹ = 79464160049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79464160591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673425031 + ... + 673425148.

It is an arithmetic number, because the mean of its divisors is an integer number (20202752700).

Almost surely, 2^79464160561 is an apocalyptic number.

It is an amenable number.

79464160561 is a deficient number, since it is larger than the sum of its proper divisors (1346850239).

79464160561 is a wasteful number, since it uses less digits than its factorization.

79464160561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346850238.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 79464160561 in words is "seventy-nine billion, four hundred sixty-four million, one hundred sixty thousand, five hundred sixty-one".