11454978798 has 32 divisors (see below), whose sum is σ = 25459027200. Its totient is φ = 3817798488.

The previous prime is 11454978781. The next prime is 11454978823. The reversal of 11454978798 is 89787945411.

11454978798 is a `hidden beast` number, since 1 + 1 + 4 + 549 + 7 + 87 + 9 + 8 = 666.

It is a congruent 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, 692913 + ... + 709251.

It is an arithmetic number, because the mean of its divisors is an integer number (795594600).

Almost surely, 2^11454978798 is an apocalyptic number.

11454978798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11454978798 is an abundant number, since it is smaller than the sum of its proper divisors (14004048402).

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

11454978798 is a wasteful number, since it uses less digits than its factorization.

11454978798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29333 (or 29327 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 63.

The spelling of 11454978798 in words is "eleven billion, four hundred fifty-four million, nine hundred seventy-eight thousand, seven hundred ninety-eight".