3963320784240 has 80 divisors (see below), whose sum is σ = 13009017646368. Its totient is φ = 994715803648.

The previous prime is 3963320784233. The next prime is 3963320784259. The reversal of 3963320784240 is 424870233693.

3963320784240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485696997 + ... + 485705156.

Almost surely, 2^{3963320784240} is an apocalyptic number.

3963320784240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3963320784240 is an abundant number, since it is smaller than the sum of its proper divisors (9045696862128).

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

3963320784240 is a wasteful number, since it uses less digits than its factorization.

3963320784240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971402186 (or 971402180 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 3963320784240 in words is "three trillion, nine hundred sixty-three billion, three hundred twenty million, seven hundred eighty-four thousand, two hundred forty".