11917457739 has 12 divisors (see below), whose sum is σ = 18779024472. Its totient is φ = 7222701600.

The previous prime is 11917457683. The next prime is 11917457771. The reversal of 11917457739 is 93775471911.

It is a happy number.

11917457739 is a `hidden beast` number, since 119 + 1 + 7 + 457 + 73 + 9 = 666.

It is not a de Polignac number, because 11917457739 - 2⁸ = 11917457483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11917457639) by changing a digit.

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, 60189082 + ... + 60189279.

It is an arithmetic number, because the mean of its divisors is an integer number (1564918706).

Almost surely, 2^11917457739 is an apocalyptic number.

11917457739 is a deficient number, since it is larger than the sum of its proper divisors (6861566733).

11917457739 is a wasteful number, since it uses less digits than its factorization.

11917457739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120378378 (or 120378375 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 54.

The spelling of 11917457739 in words is "eleven billion, nine hundred seventeen million, four hundred fifty-seven thousand, seven hundred thirty-nine".