12972996792 has 96 divisors (see below), whose sum is σ = 40307604480. Its totient is φ = 3692439360.

The previous prime is 12972996791. The next prime is 12972996847. The reversal of 12972996792 is 29769927921.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12972996791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83617 + ... + 181487.

It is an arithmetic number, because the mean of its divisors is an integer number (419870880).

Almost surely, 2^12972996792 is an apocalyptic number.

12972996792 is a gapful number since it is divisible by the number (12) 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 12972996792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20153802240).

12972996792 is an abundant number, since it is smaller than the sum of its proper divisors (27334607688).

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

12972996792 is a wasteful number, since it uses less digits than its factorization.

12972996792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98153 (or 98146 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The spelling of 12972996792 in words is "twelve billion, nine hundred seventy-two million, nine hundred ninety-six thousand, seven hundred ninety-two".