11967901198 has 16 divisors (see below), whose sum is σ = 19636355376. Its totient is φ = 5425367040.

The previous prime is 11967901159. The next prime is 11967901217. The reversal of 11967901198 is 89110976911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 721011 + ... + 737422.

It is an arithmetic number, because the mean of its divisors is an integer number (1227272211).

Almost surely, 2^11967901198 is an apocalyptic number.

11967901198 is a deficient number, since it is larger than the sum of its proper divisors (7668454178).

11967901198 is a wasteful number, since it uses less digits than its factorization.

11967901198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458819.

The product of its (nonzero) digits is 244944, while the sum is 52.

The spelling of 11967901198 in words is "eleven billion, nine hundred sixty-seven million, nine hundred one thousand, one hundred ninety-eight".