12746458984 has 128 divisors (see below), whose sum is σ = 28533888000. Its totient is φ = 5334336000.

The previous prime is 12746458979. The next prime is 12746459093. The reversal of 12746458984 is 48985464721.

Its product of digits (15482880) is a multiple of the sum of its prime factors (640).

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, 45360924 + ... + 45361204.

It is an arithmetic number, because the mean of its divisors is an integer number (222921000).

Almost surely, 2^12746458984 is an apocalyptic number.

12746458984 is a gapful number since it is divisible by the number (14) 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 12746458984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14266944000).

12746458984 is an abundant number, since it is smaller than the sum of its proper divisors (15787429016).

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

12746458984 is a wasteful number, since it uses less digits than its factorization.

12746458984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 622 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 58.

The spelling of 12746458984 in words is "twelve billion, seven hundred forty-six million, four hundred fifty-eight thousand, nine hundred eighty-four".