4000036383640 has 64 divisors (see below), whose sum is σ = 9831777096960. Its totient is φ = 1452557800320.

The previous prime is 4000036383601. The next prime is 4000036383647. The reversal of 4000036383640 is 463836300004.

It is a self number, because there is not a number n which added to its sum of digits gives 4000036383640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000036383647) 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, 5932522 + ... + 6572281.

It is an arithmetic number, because the mean of its divisors is an integer number (153621517140).

Almost surely, 2^{4000036383640} is an apocalyptic number.

4000036383640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000036383640 is an abundant number, since it is smaller than the sum of its proper divisors (5831740713320).

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

4000036383640 is a wasteful number, since it uses less digits than its factorization.

4000036383640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12505552 (or 12505548 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 4000036383640 in words is "four trillion, thirty-six million, three hundred eighty-three thousand, six hundred forty".