2659468140 has 180 divisors, whose sum is σ = 9705237696. Its totient is φ = 607860288.

The previous prime is 2659468111. The next prime is 2659468177. The reversal of 2659468140 is 418649562.

It is a tau number, because it is divible by the number of its divisors (180).

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

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 62629 + ... + 96131.

Almost surely, 2^2659468140 is an apocalyptic number.

2659468140 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 2659468140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4852618848).

2659468140 is an abundant number, since it is smaller than the sum of its proper divisors (7045769556).

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

2659468140 is a wasteful number, since it uses less digits than its factorization.

2659468140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33538 (or 33520 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2659468140 is about 51570.0314136030. The cubic root of 2659468140 is about 1385.4736293230.

The spelling of 2659468140 in words is "two billion, six hundred fifty-nine million, four hundred sixty-eight thousand, one hundred forty".