2609417880 has 96 divisors (see below), whose sum is σ = 8487460800. Its totient is φ = 695282688.

The previous prime is 2609417869. The next prime is 2609417887. The reversal of 2609417880 is 887149062.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2609417887) 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, 637681 + ... + 641759.

It is an arithmetic number, because the mean of its divisors is an integer number (88411050).

Almost surely, 2^2609417880 is an apocalyptic number.

2609417880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2609417880 is an abundant number, since it is smaller than the sum of its proper divisors (5878042920).

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

2609417880 is a wasteful number, since it uses less digits than its factorization.

2609417880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5873 (or 5866 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 2609417880 is about 51082.4615695054. The cubic root of 2609417880 is about 1376.7271527914.

The spelling of 2609417880 in words is "two billion, six hundred nine million, four hundred seventeen thousand, eight hundred eighty".