12545710780 has 24 divisors (see below), whose sum is σ = 26352995760. Its totient is φ = 5016950400.

The previous prime is 12545710763. The next prime is 12545710781. The reversal of 12545710780 is 8701754521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545710781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4425 + ... + 158464.

It is an arithmetic number, because the mean of its divisors is an integer number (1098041490).

Almost surely, 2^12545710780 is an apocalyptic number.

12545710780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12545710780 is an abundant number, since it is smaller than the sum of its proper divisors (13807284980).

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

12545710780 is a wasteful number, since it uses less digits than its factorization.

12545710780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166749 (or 166747 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 40.

The spelling of 12545710780 in words is "twelve billion, five hundred forty-five million, seven hundred ten thousand, seven hundred eighty".