2877891264 has 84 divisors (see below), whose sum is σ = 8362077256. Its totient is φ = 946142208.

The previous prime is 2877891239. The next prime is 2877891271. The reversal of 2877891264 is 4621987782.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2877891264.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7827 + ... + 76269.

Almost surely, 2^2877891264 is an apocalyptic number.

2877891264 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 2877891264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4181038628).

2877891264 is an abundant number, since it is smaller than the sum of its proper divisors (5484185992).

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

2877891264 is a wasteful number, since it uses less digits than its factorization.

2877891264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68534 (or 68521 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 2877891264 is about 53645.9808746191. The cubic root of 2877891264 is about 1422.4099893730.

The spelling of 2877891264 in words is "two billion, eight hundred seventy-seven million, eight hundred ninety-one thousand, two hundred sixty-four".