11111941854 has 32 divisors (see below), whose sum is σ = 26592683040. Its totient is φ = 3419058816.

The previous prime is 11111941853. The next prime is 11111941901. The reversal of 11111941854 is 45814911111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111941853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7913787 + ... + 7915190.

It is an arithmetic number, because the mean of its divisors is an integer number (831021345).

Almost surely, 2^11111941854 is an apocalyptic number.

11111941854 is an abundant number, since it is smaller than the sum of its proper divisors (15480741186).

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

11111941854 is a wasteful number, since it uses less digits than its factorization.

11111941854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15829001 (or 15828995 counting only the distinct ones).

The product of its digits is 5760, while the sum is 36.

The spelling of 11111941854 in words is "eleven billion, one hundred eleven million, nine hundred forty-one thousand, eight hundred fifty-four".