11088889478 has 8 divisors (see below), whose sum is σ = 17508772920. Its totient is φ = 5252631840.

The previous prime is 11088889477. The next prime is 11088889481. The reversal of 11088889478 is 87498888011.

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

It is a super-2 number, since 2×11088889478² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11088889478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11088889477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145906403 + ... + 145906478.

It is an arithmetic number, because the mean of its divisors is an integer number (2188596615).

Almost surely, 2^11088889478 is an apocalyptic number.

11088889478 is a deficient number, since it is larger than the sum of its proper divisors (6419883442).

11088889478 is a wasteful number, since it uses less digits than its factorization.

11088889478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291812902.

The product of its (nonzero) digits is 8257536, while the sum is 62.

The spelling of 11088889478 in words is "eleven billion, eighty-eight million, eight hundred eighty-nine thousand, four hundred seventy-eight".