84579158853 has 32 divisors (see below), whose sum is σ = 147822264320. Its totient is φ = 46771881840.

The previous prime is 84579158809. The next prime is 84579158857. The reversal of 84579158853 is 35885197548.

84579158853 is a `hidden beast` number, since 8 + 4 + 579 + 1 + 5 + 8 + 8 + 53 = 666.

It is not a de Polignac number, because 84579158853 - 2¹² = 84579154757 is a prime.

It is a super-2 number, since 2×84579158853² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84579158857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7212025 + ... + 7223742.

It is an arithmetic number, because the mean of its divisors is an integer number (4619445760).

Almost surely, 2^84579158853 is an apocalyptic number.

It is an amenable number.

84579158853 is a deficient number, since it is larger than the sum of its proper divisors (63243105467).

84579158853 is a wasteful number, since it uses less digits than its factorization.

84579158853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14435814 (or 14435808 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 63.

The spelling of 84579158853 in words is "eighty-four billion, five hundred seventy-nine million, one hundred fifty-eight thousand, eight hundred fifty-three".