11709790247 has 16 divisors (see below), whose sum is σ = 12601272960. Its totient is φ = 10841845248.

The previous prime is 11709790243. The next prime is 11709790331. The reversal of 11709790247 is 74209790711.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11709790247 - 2² = 11709790243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11709790241) 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 15 ways as a sum of consecutive naturals, for example, 356273 + ... + 387749.

It is an arithmetic number, because the mean of its divisors is an integer number (787579560).

Almost surely, 2^11709790247 is an apocalyptic number.

11709790247 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11709790247 is a deficient number, since it is larger than the sum of its proper divisors (891482713).

11709790247 is a wasteful number, since it uses less digits than its factorization.

11709790247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31850.

The product of its (nonzero) digits is 222264, while the sum is 47.

The spelling of 11709790247 in words is "eleven billion, seven hundred nine million, seven hundred ninety thousand, two hundred forty-seven".