11420172858 has 16 divisors (see below), whose sum is σ = 24183895680. Its totient is φ = 3582799296.

The previous prime is 11420172853. The next prime is 11420172859. The reversal of 11420172858 is 85827102411.

It is not an unprimeable number, because it can be changed into a prime (11420172853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55981138 + ... + 55981341.

It is an arithmetic number, because the mean of its divisors is an integer number (1511493480).

Almost surely, 2^11420172858 is an apocalyptic number.

11420172858 is an abundant number, since it is smaller than the sum of its proper divisors (12763722822).

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

11420172858 is a wasteful number, since it uses less digits than its factorization.

11420172858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111962501.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 11420172858 in words is "eleven billion, four hundred twenty million, one hundred seventy-two thousand, eight hundred fifty-eight".