79093450581 has 16 divisors (see below), whose sum is σ = 107477099520. Its totient is φ = 51723246960.

The previous prime is 79093450573. The next prime is 79093450607. The reversal of 79093450581 is 18505439097.

It is not a de Polignac number, because 79093450581 - 2³ = 79093450573 is a prime.

It is a super-2 number, since 2×79093450581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79093440581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 400615 + ... + 564516.

It is an arithmetic number, because the mean of its divisors is an integer number (6717318720).

Almost surely, 2^79093450581 is an apocalyptic number.

It is an amenable number.

79093450581 is a deficient number, since it is larger than the sum of its proper divisors (28383648939).

79093450581 is a wasteful number, since it uses less digits than its factorization.

79093450581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965656.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 79093450581 in words is "seventy-nine billion, ninety-three million, four hundred fifty thousand, five hundred eighty-one".