12573515898 has 64 divisors (see below), whose sum is σ = 28730298240. Its totient is φ = 4073068800.

The previous prime is 12573515893. The next prime is 12573515909. The reversal of 12573515898 is 89851537521.

12573515898 is a `hidden beast` number, since 1 + 2 + 5 + 7 + 3 + 51 + 589 + 8 = 666.

12573515898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (12573515893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1936818 + ... + 1943298.

It is an arithmetic number, because the mean of its divisors is an integer number (448910910).

Almost surely, 2^12573515898 is an apocalyptic number.

12573515898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12573515898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14365149120).

12573515898 is an abundant number, since it is smaller than the sum of its proper divisors (16156782342).

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

12573515898 is a wasteful number, since it uses less digits than its factorization.

12573515898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500 (or 7494 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 54.

The spelling of 12573515898 in words is "twelve billion, five hundred seventy-three million, five hundred fifteen thousand, eight hundred ninety-eight".