11728729754 has 16 divisors (see below), whose sum is σ = 21164625600. Its totient is φ = 4762040544.

The previous prime is 11728729723. The next prime is 11728729759. The reversal of 11728729754 is 45792782711.

It is a junction number, because it is equal to n+sod(n) for n = 11728729696 and 11728729705.

It is not an unprimeable number, because it can be changed into a prime (11728729759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22046219 + ... + 22046750.

It is an arithmetic number, because the mean of its divisors is an integer number (1322789100).

Almost surely, 2^11728729754 is an apocalyptic number.

11728729754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11728729754 is a deficient number, since it is larger than the sum of its proper divisors (9435895846).

11728729754 is a wasteful number, since it uses less digits than its factorization.

11728729754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44092997.

The product of its digits is 1975680, while the sum is 53.

The spelling of 11728729754 in words is "eleven billion, seven hundred twenty-eight million, seven hundred twenty-nine thousand, seven hundred fifty-four".