12499752158 has 8 divisors (see below), whose sum is σ = 18755565528. Its totient is φ = 6247896984.

The previous prime is 12499752107. The next prime is 12499752191. The reversal of 12499752158 is 85125799421.

12499752158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12499752158² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 981641 + ... + 994292.

It is an arithmetic number, because the mean of its divisors is an integer number (2344445691).

Almost surely, 2^12499752158 is an apocalyptic number.

12499752158 is a deficient number, since it is larger than the sum of its proper divisors (6255813370).

12499752158 is a wasteful number, since it uses less digits than its factorization.

12499752158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979098.

The product of its digits is 1814400, while the sum is 53.

The spelling of 12499752158 in words is "twelve billion, four hundred ninety-nine million, seven hundred fifty-two thousand, one hundred fifty-eight".