3989326601456 has 320 divisors, whose sum is σ = 9534589747200. Its totient is φ = 1580002744320.

The previous prime is 3989326601413. The next prime is 3989326601467. The reversal of 3989326601456 is 6541066239893.

It is a super-2 number, since 2×3989326601456² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7293101375 + ... + 7293101921.

It is an arithmetic number, because the mean of its divisors is an integer number (29795592960).

Almost surely, 2^{3989326601456} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3989326601456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4767294873600).

3989326601456 is an abundant number, since it is smaller than the sum of its proper divisors (5545263145744).

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

3989326601456 is a wasteful number, since it uses less digits than its factorization.

3989326601456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1166 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 62.

The spelling of 3989326601456 in words is "three trillion, nine hundred eighty-nine billion, three hundred twenty-six million, six hundred one thousand, four hundred fifty-six".