12781860792 has 16 divisors (see below), whose sum is σ = 31954652040. Its totient is φ = 4260620256.

The previous prime is 12781860781. The next prime is 12781860799. The reversal of 12781860792 is 29706818721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12781860799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266288743 + ... + 266288790.

Almost surely, 2^12781860792 is an apocalyptic number.

12781860792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12781860792 is an abundant number, since it is smaller than the sum of its proper divisors (19172791248).

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

12781860792 is a wasteful number, since it uses less digits than its factorization.

12781860792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532577542 (or 532577538 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 51.

The spelling of 12781860792 in words is "twelve billion, seven hundred eighty-one million, eight hundred sixty thousand, seven hundred ninety-two".