12108248525838 has 32 divisors (see below), whose sum is σ = 25492522832640. Its totient is φ = 3823436433600.

The previous prime is 12108248525761. The next prime is 12108248525839. The reversal of 12108248525838 is 83852584280121.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12108248525839) 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, 1082695 + ... + 5038722.

It is an arithmetic number, because the mean of its divisors is an integer number (796641338520).

Almost surely, 2^{12108248525838} is an apocalyptic number.

12108248525838 is an abundant number, since it is smaller than the sum of its proper divisors (13384274306802).

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

12108248525838 is a wasteful number, since it uses less digits than its factorization.

12108248525838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138792.

The product of its (nonzero) digits is 9830400, while the sum is 57.

The spelling of 12108248525838 in words is "twelve trillion, one hundred eight billion, two hundred forty-eight million, five hundred twenty-five thousand, eight hundred thirty-eight".