84004618431 has 32 divisors (see below), whose sum is σ = 122477764608. Its totient is φ = 50984593920.

The previous prime is 84004618403. The next prime is 84004618469. The reversal of 84004618431 is 13481640048.

It is not a de Polignac number, because 84004618431 - 2⁹ = 84004617919 is a prime.

It is a super-2 number, since 2×84004618431² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84004618431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84004618331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3715146 + ... + 3737688.

It is an arithmetic number, because the mean of its divisors is an integer number (3827430144).

Almost surely, 2^84004618431 is an apocalyptic number.

84004618431 is a deficient number, since it is larger than the sum of its proper divisors (38473146177).

84004618431 is a wasteful number, since it uses less digits than its factorization.

84004618431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24951.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 84004618431 in words is "eighty-four billion, four million, six hundred eighteen thousand, four hundred thirty-one".