84479723488 has 24 divisors (see below), whose sum is σ = 173550737808. Its totient is φ = 40403345664.

The previous prime is 84479723467. The next prime is 84479723521. The reversal of 84479723488 is 88432797448.

It is a super-2 number, since 2×84479723488² (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, 57390381 + ... + 57391852.

It is an arithmetic number, because the mean of its divisors is an integer number (7231280742).

Almost surely, 2^84479723488 is an apocalyptic number.

It is an amenable number.

84479723488 is an abundant number, since it is smaller than the sum of its proper divisors (89071014320).

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

84479723488 is a wasteful number, since it uses less digits than its factorization.

84479723488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114782266 (or 114782258 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 64.

The spelling of 84479723488 in words is "eighty-four billion, four hundred seventy-nine million, seven hundred twenty-three thousand, four hundred eighty-eight".