15126863994840 has 256 divisors, whose sum is σ = 49402164873600. Its totient is φ = 3683211264000.

The previous prime is 15126863994817. The next prime is 15126863994871. The reversal of 15126863994840 is 4849936862151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 102120030 + ... + 102268050.

Almost surely, 2^{15126863994840} is an apocalyptic number.

15126863994840 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 15126863994840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24701082436800).

15126863994840 is an abundant number, since it is smaller than the sum of its proper divisors (34275300878760).

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

15126863994840 is a wasteful number, since it uses less digits than its factorization.

15126863994840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148758 (or 148754 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 66.

The spelling of 15126863994840 in words is "fifteen trillion, one hundred twenty-six billion, eight hundred sixty-three million, nine hundred ninety-four thousand, eight hundred forty".