2818854864 has 160 divisors (see below), whose sum is σ = 9791159040. Its totient is φ = 757997568.

The previous prime is 2818854833. The next prime is 2818854889. The reversal of 2818854864 is 4684588182.

2818854864 is a `hidden beast` number, since 2 + 81 + 8 + 85 + 486 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 2818854864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23992 + ... + 78824.

It is an arithmetic number, because the mean of its divisors is an integer number (61194744).

Almost surely, 2^2818854864 is an apocalyptic number.

2818854864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2818854864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4895579520).

2818854864 is an abundant number, since it is smaller than the sum of its proper divisors (6972304176).

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

2818854864 is a wasteful number, since it uses less digits than its factorization.

2818854864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54874 (or 54862 counting only the distinct ones).

The product of its digits is 3932160, while the sum is 54.

The square root of 2818854864 is about 53092.8890153851. The cubic root of 2818854864 is about 1412.6163824432.

The spelling of 2818854864 in words is "two billion, eight hundred eighteen million, eight hundred fifty-four thousand, eight hundred sixty-four".