3656981088 has 96 divisors (see below), whose sum is σ = 10677744000. Its totient is φ = 1217674368.

The previous prime is 3656981057. The next prime is 3656981089. The reversal of 3656981088 is 8801896563.

3656981088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3656981089) 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, 1106863 + ... + 1110161.

It is an arithmetic number, because the mean of its divisors is an integer number (111226500).

Almost surely, 2^3656981088 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 3656981088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5338872000).

3656981088 is an abundant number, since it is smaller than the sum of its proper divisors (7020762912).

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

3656981088 is a wasteful number, since it uses less digits than its factorization.

3656981088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4601 (or 4587 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 3656981088 is about 60472.9781638047. The cubic root of 3656981088 is about 1540.6627113437.

The spelling of 3656981088 in words is "three billion, six hundred fifty-six million, nine hundred eighty-one thousand, eighty-eight".