2399631440640 has 288 divisors, whose sum is σ = 8812404926976. Its totient is φ = 545121239040.

The previous prime is 2399631440639. The next prime is 2399631440671. The reversal of 2399631440640 is 460441369932.

2399631440640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4107600 + ... + 4655280.

Almost surely, 2^{2399631440640} is an apocalyptic number.

2399631440640 is a gapful number since it is divisible by the number (20) 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 2399631440640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4406202463488).

2399631440640 is an abundant number, since it is smaller than the sum of its proper divisors (6412773486336).

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

2399631440640 is a wasteful number, since it uses less digits than its factorization.

2399631440640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547875 (or 547861 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 51.

The spelling of 2399631440640 in words is "two trillion, three hundred ninety-nine billion, six hundred thirty-one million, four hundred forty thousand, six hundred forty".