11728349167 has 4 divisors (see below), whose sum is σ = 11730044376. Its totient is φ = 11726653960.

The previous prime is 11728349081. The next prime is 11728349183. The reversal of 11728349167 is 76194382711.

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

It is a cyclic number.

It is not a de Polignac number, because 11728349167 - 2¹⁵ = 11728316399 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 11728349167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11728349467) 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, 837184 + ... + 851077.

It is an arithmetic number, because the mean of its divisors is an integer number (2932511094).

Almost surely, 2^11728349167 is an apocalyptic number.

11728349167 is a deficient number, since it is larger than the sum of its proper divisors (1695209).

11728349167 is an equidigital number, since it uses as much as digits as its factorization.

11728349167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695208.

The product of its digits is 508032, while the sum is 49.

The spelling of 11728349167 in words is "eleven billion, seven hundred twenty-eight million, three hundred forty-nine thousand, one hundred sixty-seven".