12529170780 has 96 divisors (see below), whose sum is σ = 40115851776. Its totient is φ = 2862203136.

The previous prime is 12529170763. The next prime is 12529170809. The reversal of 12529170780 is 8707192521.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 843982 + ... + 858698.

It is an arithmetic number, because the mean of its divisors is an integer number (417873456).

Almost surely, 2^12529170780 is an apocalyptic number.

12529170780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12529170780 is an abundant number, since it is smaller than the sum of its proper divisors (27586680996).

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

12529170780 is a wasteful number, since it uses less digits than its factorization.

12529170780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16763 (or 16761 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 42.

The spelling of 12529170780 in words is "twelve billion, five hundred twenty-nine million, one hundred seventy thousand, seven hundred eighty".