12618562680 has 96 divisors (see below), whose sum is σ = 42793414560. Its totient is φ = 3218645760.

The previous prime is 12618562669. The next prime is 12618562687. The reversal of 12618562680 is 8626581621.

12618562680 is a `hidden beast` number, since 1 + 2 + 6 + 1 + 8 + 562 + 6 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12618562687) 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, 753711 + ... + 770270.

It is an arithmetic number, because the mean of its divisors is an integer number (445764735).

Almost surely, 2^12618562680 is an apocalyptic number.

12618562680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12618562680 is an abundant number, since it is smaller than the sum of its proper divisors (30174851880).

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

12618562680 is a wasteful number, since it uses less digits than its factorization.

12618562680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524021 (or 1524014 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 12618562680 in words is "twelve billion, six hundred eighteen million, five hundred sixty-two thousand, six hundred eighty".