84057952818 has 32 divisors (see below), whose sum is σ = 192957088896. Its totient is φ = 23913479808.

The previous prime is 84057952751. The next prime is 84057952879. The reversal of 84057952818 is 81825975048.

It is a super-2 number, since 2×84057952818² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4285021 + ... + 4304592.

It is an arithmetic number, because the mean of its divisors is an integer number (6029909028).

Almost surely, 2^84057952818 is an apocalyptic number.

84057952818 is an abundant number, since it is smaller than the sum of its proper divisors (108899136078).

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

84057952818 is a wasteful number, since it uses less digits than its factorization.

84057952818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8589858.

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 84057952818 in words is "eighty-four billion, fifty-seven million, nine hundred fifty-two thousand, eight hundred eighteen".