12258519532 has 48 divisors (see below), whose sum is σ = 25197760000. Its totient is φ = 5215774032.

The previous prime is 12258519527. The next prime is 12258519569. The reversal of 12258519532 is 23591585221.

It is a super-2 number, since 2×12258519532² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158569 + ... + 222847.

Almost surely, 2^12258519532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12258519532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12598880000).

12258519532 is an abundant number, since it is smaller than the sum of its proper divisors (12939240468).

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

12258519532 is a wasteful number, since it uses less digits than its factorization.

12258519532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64443 (or 64427 counting only the distinct ones).

The product of its digits is 216000, while the sum is 43.

The spelling of 12258519532 in words is "twelve billion, two hundred fifty-eight million, five hundred nineteen thousand, five hundred thirty-two".