84102534408720 has 40 divisors (see below), whose sum is σ = 260717856667776. Its totient is φ = 22427342508928.

The previous prime is 84102534408707. The next prime is 84102534408743. The reversal of 84102534408720 is 2780443520148.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 84102534408720.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175213613112 + ... + 175213613591.

Almost surely, 2^{84102534408720} is an apocalyptic number.

84102534408720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

84102534408720 is an abundant number, since it is smaller than the sum of its proper divisors (176615322259056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84102534408720 is a wasteful number, since it uses less digits than its factorization.

84102534408720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350427226719 (or 350427226713 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 48.

Adding to 84102534408720 its reverse (2780443520148), we get a palindrome (86882977928868).

The spelling of 84102534408720 in words is "eighty-four trillion, one hundred two billion, five hundred thirty-four million, four hundred eight thousand, seven hundred twenty".