2659852636 has 48 divisors (see below), whose sum is σ = 5654172160. Its totient is φ = 1069433280.

The previous prime is 2659852627. The next prime is 2659852639. The reversal of 2659852636 is 6362589562.

It is a happy number.

It is a super-2 number, since 2×2659852636² = 14149632090472296992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2659852639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30526 + ... + 79066.

Almost surely, 2^2659852636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2659852636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2827086080).

2659852636 is an abundant number, since it is smaller than the sum of its proper divisors (2994319524).

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

2659852636 is a wasteful number, since it uses less digits than its factorization.

2659852636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48674 (or 48672 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 52.

The square root of 2659852636 is about 51573.7591804204. The cubic root of 2659852636 is about 1385.5403949782.

The spelling of 2659852636 in words is "two billion, six hundred fifty-nine million, eight hundred fifty-two thousand, six hundred thirty-six".