79485244861 has 32 divisors (see below), whose sum is σ = 89624620800. Its totient is φ = 69877248000.

The previous prime is 79485244849. The next prime is 79485244873. The reversal of 79485244861 is 16844258497.

It is an interprime number because it is at equal distance from previous prime (79485244849) and next prime (79485244873).

It is a cyclic number.

It is not a de Polignac number, because 79485244861 - 2²³ = 79476856253 is a prime.

It is a super-2 number, since 2×79485244861² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79485244796 and 79485244805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79485244361) 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 31 ways as a sum of consecutive naturals, for example, 18530205 + ... + 18534493.

It is an arithmetic number, because the mean of its divisors is an integer number (2800769400).

Almost surely, 2^79485244861 is an apocalyptic number.

79485244861 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

79485244861 is the 126084-th centered decagonal number.

It is an amenable number.

79485244861 is a deficient number, since it is larger than the sum of its proper divisors (10139375939).

79485244861 is a wasteful number, since it uses less digits than its factorization.

79485244861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4821.

The product of its digits is 15482880, while the sum is 58.

The spelling of 79485244861 in words is "seventy-nine billion, four hundred eighty-five million, two hundred forty-four thousand, eight hundred sixty-one".