11854017749 has 32 divisors (see below), whose sum is σ = 14401459200. Its totient is φ = 9531043200.

The previous prime is 11854017731. The next prime is 11854017767. The reversal of 11854017749 is 94771045811.

It is an interprime number because it is at equal distance from previous prime (11854017731) and next prime (11854017767).

It is not a de Polignac number, because 11854017749 - 2⁸ = 11854017493 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11854017719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11278274 + ... + 11279324.

It is an arithmetic number, because the mean of its divisors is an integer number (450045600).

Almost surely, 2^11854017749 is an apocalyptic number.

11854017749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11854017749 is a deficient number, since it is larger than the sum of its proper divisors (2547441451).

11854017749 is a wasteful number, since it uses less digits than its factorization.

11854017749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 282240, while the sum is 47.

The spelling of 11854017749 in words is "eleven billion, eight hundred fifty-four million, seventeen thousand, seven hundred forty-nine".