12458597772 has 48 divisors (see below), whose sum is σ = 30382474752. Its totient is φ = 3965955840.

The previous prime is 12458597771. The next prime is 12458597773. The reversal of 12458597772 is 27779585421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12458597771) and next prime (12458597773).

It is not an unprimeable number, because it can be changed into a prime (12458597771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138388 + ... + 209924.

It is an arithmetic number, because the mean of its divisors is an integer number (632968224).

Almost surely, 2^12458597772 is an apocalyptic number.

12458597772 is a gapful number since it is divisible by the number (12) 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 12458597772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15191237376).

12458597772 is an abundant number, since it is smaller than the sum of its proper divisors (17923876980).

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

12458597772 is a wasteful number, since it uses less digits than its factorization.

12458597772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72198 (or 72196 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 57.

The spelling of 12458597772 in words is "twelve billion, four hundred fifty-eight million, five hundred ninety-seven thousand, seven hundred seventy-two".