11943747774 has 24 divisors (see below), whose sum is σ = 29574994800. Its totient is φ = 3412499328.

The previous prime is 11943747737. The next prime is 11943747793. The reversal of 11943747774 is 47774734911.

11943747774 is a `hidden beast` number, since 11 + 94 + 3 + 7 + 477 + 74 = 666.

It is a super-2 number, since 2×11943747774² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11943747774.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 47395699 + ... + 47395950.

It is an arithmetic number, because the mean of its divisors is an integer number (1232291450).

Almost surely, 2^11943747774 is an apocalyptic number.

11943747774 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11943747774 is an abundant number, since it is smaller than the sum of its proper divisors (17631247026).

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

11943747774 is a wasteful number, since it uses less digits than its factorization.

11943747774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94791664 (or 94791661 counting only the distinct ones).

The product of its digits is 4148928, while the sum is 54.

The spelling of 11943747774 in words is "eleven billion, nine hundred forty-three million, seven hundred forty-seven thousand, seven hundred seventy-four".