1113851929491 has 48 divisors (see below), whose sum is σ = 1862409369600. Its totient is φ = 628316625024.

The previous prime is 1113851929447. The next prime is 1113851929537. The reversal of 1113851929491 is 1949291583111.

1113851929491 is a `hidden beast` number, since 1 + 1 + 1 + 38 + 519 + 2 + 9 + 4 + 91 = 666.

It is not a de Polignac number, because 1113851929491 - 2¹⁵ = 1113851896723 is a prime.

It is a super-2 number, since 2×1113851929491² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1113851929591) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3310270 + ... + 3631196.

It is an arithmetic number, because the mean of its divisors is an integer number (38800195200).

Almost surely, 2^{1113851929491} is an apocalyptic number.

1113851929491 is a deficient number, since it is larger than the sum of its proper divisors (748557440109).

1113851929491 is a wasteful number, since it uses less digits than its factorization.

1113851929491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321648 (or 321645 counting only the distinct ones).

The product of its digits is 699840, while the sum is 54.

The spelling of 1113851929491 in words is "one trillion, one hundred thirteen billion, eight hundred fifty-one million, nine hundred twenty-nine thousand, four hundred ninety-one".