1111691879424 has 495 divisors, whose sum is σ = 3869123828427. Its totient is φ = 317018935296.

The previous prime is 1111691879401. The next prime is 1111691879479. The reversal of 1111691879424 is 4249781961111.

The square root of 1111691879424 is 1054368.

It is a perfect power (a square), and thus also a powerful number.

1111691879424 is a `hidden beast` number, since 11 + 116 + 91 + 8 + 7 + 9 + 424 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2125605627 + ... + 2125606149.

Almost surely, 2^{1111691879424} is an apocalyptic number.

1111691879424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1111691879424 is the 1054368-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111691879424

1111691879424 is an abundant number, since it is smaller than the sum of its proper divisors (2757431949003).

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

1111691879424 is an frugal number, since it uses more digits than its factorization.

1111691879424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 535 counting only the distinct ones).

The product of its digits is 870912, while the sum is 54.

The spelling of 1111691879424 in words is "one trillion, one hundred eleven billion, six hundred ninety-one million, eight hundred seventy-nine thousand, four hundred twenty-four".