11749097209651 has 4 divisors (see below), whose sum is σ = 11749132017792. Its totient is φ = 11749062401512.

The previous prime is 11749097209627. The next prime is 11749097209667. The reversal of 11749097209651 is 15690279094711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11749097209651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11749097209651.

It is not an unprimeable number, because it can be changed into a prime (11749097209691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16892755 + ... + 17574508.

It is an arithmetic number, because the mean of its divisors is an integer number (2937283004448).

Almost surely, 2^{11749097209651} is an apocalyptic number.

11749097209651 is a deficient number, since it is larger than the sum of its proper divisors (34808141).

11749097209651 is an equidigital number, since it uses as much as digits as its factorization.

11749097209651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34808140.

The product of its (nonzero) digits is 8573040, while the sum is 61.

The spelling of 11749097209651 in words is "eleven trillion, seven hundred forty-nine billion, ninety-seven million, two hundred nine thousand, six hundred fifty-one".