3998071407584 has 48 divisors (see below), whose sum is σ = 8142964376400. Its totient is φ = 1930022728704.

The previous prime is 3998071407571. The next prime is 3998071407637. The reversal of 3998071407584 is 4857041708993.

It is a self number, because there is not a number n which added to its sum of digits gives 3998071407584.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26267252 + ... + 26419020.

It is an arithmetic number, because the mean of its divisors is an integer number (169645091175).

Almost surely, 2^{3998071407584} is an apocalyptic number.

It is an amenable number.

3998071407584 is an abundant number, since it is smaller than the sum of its proper divisors (4144892968816).

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

3998071407584 is a wasteful number, since it uses less digits than its factorization.

3998071407584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180195 (or 180187 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 3998071407584 in words is "three trillion, nine hundred ninety-eight billion, seventy-one million, four hundred seven thousand, five hundred eighty-four".