36944702640 has 200 divisors, whose sum is σ = 128525644368. Its totient is φ = 9835706880.

The previous prime is 36944702629. The next prime is 36944702647. The reversal of 36944702640 is 4620744963.

It is a happy number.

36944702640 is a `hidden beast` number, since 36 + 94 + 470 + 2 + 64 + 0 = 666.

It is a super-2 number, since 2×36944702640² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (36944702647) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4227075 + ... + 4235805.

Almost surely, 2^36944702640 is an apocalyptic number.

36944702640 is a gapful number since it is divisible by the number (30) 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 36944702640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64262822184).

36944702640 is an abundant number, since it is smaller than the sum of its proper divisors (91580941728).

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

36944702640 is a wasteful number, since it uses less digits than its factorization.

36944702640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9409 (or 9394 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 36944702640 in words is "thirty-six billion, nine hundred forty-four million, seven hundred two thousand, six hundred forty".