11172864842 has 16 divisors (see below), whose sum is σ = 17643436800. Its totient is φ = 5291788320.

The previous prime is 11172864811. The next prime is 11172864853. The reversal of 11172864842 is 24846827111.

11172864842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11172864793 and 11172864802.

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 7 ways as a sum of consecutive naturals, for example, 571367 + ... + 590597.

It is an arithmetic number, because the mean of its divisors is an integer number (1102714800).

Almost surely, 2^11172864842 is an apocalyptic number.

11172864842 is a deficient number, since it is larger than the sum of its proper divisors (6470571958).

11172864842 is a wasteful number, since it uses less digits than its factorization.

11172864842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34541.

The product of its digits is 172032, while the sum is 44.

The spelling of 11172864842 in words is "eleven billion, one hundred seventy-two million, eight hundred sixty-four thousand, eight hundred forty-two".