11990535194 has 16 divisors (see below), whose sum is σ = 19629704160. Its totient is φ = 5447790960.

The previous prime is 11990535187. The next prime is 11990535197. The reversal of 11990535194 is 49153509911.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11990535197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72149 + ... + 170840.

It is an arithmetic number, because the mean of its divisors is an integer number (1226856510).

Almost surely, 2^11990535194 is an apocalyptic number.

11990535194 is a deficient number, since it is larger than the sum of its proper divisors (7639168966).

11990535194 is a wasteful number, since it uses less digits than its factorization.

11990535194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245245.

The product of its (nonzero) digits is 218700, while the sum is 47.

The spelling of 11990535194 in words is "eleven billion, nine hundred ninety million, five hundred thirty-five thousand, one hundred ninety-four".