2876121640 has 96 divisors (see below), whose sum is σ = 7541182080. Its totient is φ = 984348288.

The previous prime is 2876121623. The next prime is 2876121643. The reversal of 2876121640 is 461216782.

It is a self number, because there is not a number n which added to its sum of digits gives 2876121640.

It is not an unprimeable number, because it can be changed into a prime (2876121643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1612189 + ... + 1613971.

It is an arithmetic number, because the mean of its divisors is an integer number (78553980).

Almost surely, 2^2876121640 is an apocalyptic number.

2876121640 is a gapful number since it is divisible by the number (20) 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 2876121640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3770591040).

2876121640 is an abundant number, since it is smaller than the sum of its proper divisors (4665060440).

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

2876121640 is a wasteful number, since it uses less digits than its factorization.

2876121640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631 (or 2620 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 2876121640 is about 53629.4848008071. The cubic root of 2876121640 is about 1422.1183815334.

The spelling of 2876121640 in words is "two billion, eight hundred seventy-six million, one hundred twenty-one thousand, six hundred forty".