11198985954 has 32 divisors (see below), whose sum is σ = 24175416384. Its totient is φ = 3438052800.

The previous prime is 11198985937. The next prime is 11198985961. The reversal of 11198985954 is 45958989111.

It is a happy number.

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, 127497 + ... + 196604.

It is an arithmetic number, because the mean of its divisors is an integer number (755481762).

Almost surely, 2^11198985954 is an apocalyptic number.

11198985954 is an abundant number, since it is smaller than the sum of its proper divisors (12976430430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11198985954 is a wasteful number, since it uses less digits than its factorization.

11198985954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324562.

The product of its digits is 4665600, while the sum is 60.

The spelling of 11198985954 in words is "eleven billion, one hundred ninety-eight million, nine hundred eighty-five thousand, nine hundred fifty-four".