84879658944 has 168 divisors, whose sum is σ = 258458713968. Its totient is φ = 27602933760.

The previous prime is 84879658931. The next prime is 84879658957. The reversal of 84879658944 is 44985697848.

84879658944 is a `hidden beast` number, since 8 + 487 + 9 + 6 + 58 + 94 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (84879658931) and next prime (84879658957).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 571074 + ... + 704190.

It is an arithmetic number, because the mean of its divisors is an integer number (1538444726).

Almost surely, 2^84879658944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84879658944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129229356984).

84879658944 is an abundant number, since it is smaller than the sum of its proper divisors (173579055024).

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

84879658944 is a wasteful number, since it uses less digits than its factorization.

84879658944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133185 (or 133163 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 72.

The spelling of 84879658944 in words is "eighty-four billion, eight hundred seventy-nine million, six hundred fifty-eight thousand, nine hundred forty-four".