11871725142 has 16 divisors (see below), whose sum is σ = 24191440560. Its totient is φ = 3882576672.

The previous prime is 11871725137. The next prime is 11871725171. The reversal of 11871725142 is 24152717811.

It is a self number, because there is not a number n which added to its sum of digits gives 11871725142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18665917 + ... + 18666552.

It is an arithmetic number, because the mean of its divisors is an integer number (1511965035).

Almost surely, 2^11871725142 is an apocalyptic number.

11871725142 is an abundant number, since it is smaller than the sum of its proper divisors (12319715418).

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

11871725142 is a wasteful number, since it uses less digits than its factorization.

11871725142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37332527.

The product of its digits is 31360, while the sum is 39.

The spelling of 11871725142 in words is "eleven billion, eight hundred seventy-one million, seven hundred twenty-five thousand, one hundred forty-two".