79477282589 has 4 divisors (see below), whose sum is σ = 79478751456. Its totient is φ = 79475813724.

The previous prime is 79477282583. The next prime is 79477282597. The reversal of 79477282589 is 98528277497.

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 79477282589 - 2⁸ = 79477282333 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79477282583) 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, 650039 + ... + 762564.

It is an arithmetic number, because the mean of its divisors is an integer number (19869687864).

Almost surely, 2^79477282589 is an apocalyptic number.

It is an amenable number.

79477282589 is a deficient number, since it is larger than the sum of its proper divisors (1468867).

79477282589 is a wasteful number, since it uses less digits than its factorization.

79477282589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468866.

The product of its digits is 142248960, while the sum is 68.

The spelling of 79477282589 in words is "seventy-nine billion, four hundred seventy-seven million, two hundred eighty-two thousand, five hundred eighty-nine".