3909790490928 has 160 divisors (see below), whose sum is σ = 11800326873600. Its totient is φ = 1115038229760.

The previous prime is 3909790490899. The next prime is 3909790490933. The reversal of 3909790490928 is 8290940979093.

It is a super-2 number, since 2×3909790490928² (a number of 26 digits) contains 22 as substring.

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, 8788738 + ... + 9222878.

It is an arithmetic number, because the mean of its divisors is an integer number (73752042960).

Almost surely, 2^{3909790490928} 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 3909790490928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5900163436800).

3909790490928 is an abundant number, since it is smaller than the sum of its proper divisors (7890536382672).

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

3909790490928 is a wasteful number, since it uses less digits than its factorization.

3909790490928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434720 (or 434700 counting only the distinct ones).

The product of its (nonzero) digits is 79361856, while the sum is 69.

The spelling of 3909790490928 in words is "three trillion, nine hundred nine billion, seven hundred ninety million, four hundred ninety thousand, nine hundred twenty-eight".