3640756896 has 480 divisors, whose sum is σ = 13172544000. Its totient is φ = 963353088.

The previous prime is 3640756883. The next prime is 3640756919. The reversal of 3640756896 is 6986570463.

3640756896 is a `hidden beast` number, since 36 + 40 + 7 + 568 + 9 + 6 = 666.

It is a super-2 number, since 2×3640756896² = 26510221551543109632, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 20339335 + ... + 20339513.

It is an arithmetic number, because the mean of its divisors is an integer number (27442800).

Almost surely, 2^3640756896 is an apocalyptic number.

3640756896 is a gapful number since it is divisible by the number (36) 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 3640756896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6586272000).

3640756896 is an abundant number, since it is smaller than the sum of its proper divisors (9531787104).

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

3640756896 is a wasteful number, since it uses less digits than its factorization.

3640756896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The square root of 3640756896 is about 60338.6849044624. The cubic root of 3640756896 is about 1538.3809509398.

The spelling of 3640756896 in words is "three billion, six hundred forty million, seven hundred fifty-six thousand, eight hundred ninety-six".