84935131872 has 24 divisors (see below), whose sum is σ = 222954721416. Its totient is φ = 28311710592.

The previous prime is 84935131847. The next prime is 84935131889. The reversal of 84935131872 is 27813153948.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×84935131872² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442370383 + ... + 442370574.

It is an arithmetic number, because the mean of its divisors is an integer number (9289780059).

Almost surely, 2^84935131872 is an apocalyptic number.

It is an amenable number.

84935131872 is an abundant number, since it is smaller than the sum of its proper divisors (138019589544).

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

84935131872 is a wasteful number, since it uses less digits than its factorization.

84935131872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884740970 (or 884740962 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The spelling of 84935131872 in words is "eighty-four billion, nine hundred thirty-five million, one hundred thirty-one thousand, eight hundred seventy-two".