84876798940 has 24 divisors (see below), whose sum is σ = 180497499840. Its totient is φ = 33520963008.

The previous prime is 84876798911. The next prime is 84876798973. The reversal of 84876798940 is 4989767848.

It is a self number, because there is not a number n which added to its sum of digits gives 84876798940.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26858167 + ... + 26861326.

It is an arithmetic number, because the mean of its divisors is an integer number (7520729160).

Almost surely, 2^84876798940 is an apocalyptic number.

It is an amenable number.

84876798940 is an abundant number, since it is smaller than the sum of its proper divisors (95620700900).

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

84876798940 is a wasteful number, since it uses less digits than its factorization.

84876798940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53719581 (or 53719579 counting only the distinct ones).

The product of its (nonzero) digits is 195084288, while the sum is 70.

The spelling of 84876798940 in words is "eighty-four billion, eight hundred seventy-six million, seven hundred ninety-eight thousand, nine hundred forty".