12562758820 has 96 divisors (see below), whose sum is σ = 27807131520. Its totient is φ = 4760985600.

The previous prime is 12562758811. The next prime is 12562758833. The reversal of 12562758820 is 2885726521.

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, 7846020 + ... + 7847620.

It is an arithmetic number, because the mean of its divisors is an integer number (289657620).

Almost surely, 2^12562758820 is an apocalyptic number.

12562758820 is a gapful number since it is divisible by the number (10) 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 12562758820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13903565760).

12562758820 is an abundant number, since it is smaller than the sum of its proper divisors (15244372700).

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

12562758820 is a wasteful number, since it uses less digits than its factorization.

12562758820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885 (or 1883 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 12562758820 in words is "twelve billion, five hundred sixty-two million, seven hundred fifty-eight thousand, eight hundred twenty".