11889812090 has 32 divisors (see below), whose sum is σ = 23060733696. Its totient is φ = 4387648320.

The previous prime is 11889812083. The next prime is 11889812111. The reversal of 11889812090 is 9021898811.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218789 + ... + 267671.

It is an arithmetic number, because the mean of its divisors is an integer number (720647928).

Almost surely, 2^11889812090 is an apocalyptic number.

11889812090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11889812090 is a deficient number, since it is larger than the sum of its proper divisors (11170921606).

11889812090 is a wasteful number, since it uses less digits than its factorization.

11889812090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50774.

The product of its (nonzero) digits is 82944, while the sum is 47.

The spelling of 11889812090 in words is "eleven billion, eight hundred eighty-nine million, eight hundred twelve thousand, ninety".