3999100896 has 540 divisors, whose sum is σ = 14672567448. Its totient is φ = 1063383552.

The previous prime is 3999100871. The next prime is 3999100909. The reversal of 3999100896 is 6980019993.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 108083790 + ... + 108083826.

Almost surely, 2^3999100896 is an apocalyptic number.

3999100896 is a gapful number since it is divisible by the number (36) 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 3999100896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7336283724).

3999100896 is an abundant number, since it is smaller than the sum of its proper divisors (10673466552).

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

3999100896 is a wasteful number, since it uses less digits than its factorization.

3999100896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 54.

The square root of 3999100896 is about 63238.4447626600. Note that the first 3 decimals coincide. The cubic root of 3999100896 is about 1587.2821065028.

The spelling of 3999100896 in words is "three billion, nine hundred ninety-nine million, one hundred thousand, eight hundred ninety-six".