2643107880 has 128 divisors (see below), whose sum is σ = 9233222400. Its totient is φ = 592730112.

The previous prime is 2643107867. The next prime is 2643107881. The reversal of 2643107880 is 887013462.

It is not an unprimeable number, because it can be changed into a prime (2643107881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14836 + ... + 74204.

It is an arithmetic number, because the mean of its divisors is an integer number (72134550).

Almost surely, 2^2643107880 is an apocalyptic number.

2643107880 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 2643107880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4616611200).

2643107880 is an abundant number, since it is smaller than the sum of its proper divisors (6590114520).

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

2643107880 is a wasteful number, since it uses less digits than its factorization.

2643107880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59443 (or 59439 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 2643107880 is about 51411.1649352551. The cubic root of 2643107880 is about 1382.6267759007.

The spelling of 2643107880 in words is "two billion, six hundred forty-three million, one hundred seven thousand, eight hundred eighty".