11940697774 has 8 divisors (see below), whose sum is σ = 18075368520. Its totient is φ = 5915574936.

The previous prime is 11940697729. The next prime is 11940697787. The reversal of 11940697774 is 47779604911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 27386704 + ... + 27387139.

It is an arithmetic number, because the mean of its divisors is an integer number (2259421065).

Almost surely, 2^11940697774 is an apocalyptic number.

11940697774 is a deficient number, since it is larger than the sum of its proper divisors (6134670746).

11940697774 is a wasteful number, since it uses less digits than its factorization.

11940697774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54773954.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The spelling of 11940697774 in words is "eleven billion, nine hundred forty million, six hundred ninety-seven thousand, seven hundred seventy-four".