12926115840 has 448 divisors, whose sum is σ = 46088393472. Its totient is φ = 3067084800.

The previous prime is 12926115803. The next prime is 12926115859. The reversal of 12926115840 is 4851162921.

It is a congruent number.

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, 98672575 + ... + 98672705.

Almost surely, 2^12926115840 is an apocalyptic number.

12926115840 is a gapful number since it is divisible by the number (10) 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 12926115840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23044196736).

12926115840 is an abundant number, since it is smaller than the sum of its proper divisors (33162277632).

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

12926115840 is a wasteful number, since it uses less digits than its factorization.

12926115840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 12926115840 in words is "twelve billion, nine hundred twenty-six million, one hundred fifteen thousand, eight hundred forty".