3639788023872 has 224 divisors, whose sum is σ = 12930156739584. Its totient is φ = 872676403200.

The previous prime is 3639788023871. The next prime is 3639788023873. The reversal of 3639788023872 is 2783208879363.

It is an interprime number because it is at equal distance from previous prime (3639788023871) and next prime (3639788023873).

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (3639788023871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9276954 + ... + 9661337.

It is an arithmetic number, because the mean of its divisors is an integer number (57723914016).

Almost surely, 2^{3639788023872} is an apocalyptic number.

3639788023872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3639788023872 is an abundant number, since it is smaller than the sum of its proper divisors (9290368715712).

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

3639788023872 is a wasteful number, since it uses less digits than its factorization.

3639788023872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18938337 (or 18938327 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 66.

The spelling of 3639788023872 in words is "three trillion, six hundred thirty-nine billion, seven hundred eighty-eight million, twenty-three thousand, eight hundred seventy-two".