84278531488 has 48 divisors (see below), whose sum is σ = 167850144000. Its totient is φ = 41650278912.

The previous prime is 84278531459. The next prime is 84278531503. The reversal of 84278531488 is 88413587248.

It is a happy number.

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, 13208683 + ... + 13215061.

It is an arithmetic number, because the mean of its divisors is an integer number (3496878000).

Almost surely, 2^84278531488 is an apocalyptic number.

It is an amenable number.

84278531488 is a deficient number, since it is larger than the sum of its proper divisors (83571612512).

84278531488 is a wasteful number, since it uses less digits than its factorization.

84278531488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11117 (or 11109 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 58.

The spelling of 84278531488 in words is "eighty-four billion, two hundred seventy-eight million, five hundred thirty-one thousand, four hundred eighty-eight".