16368729289 has 32 divisors (see below), whose sum is σ = 18963584640. Its totient is φ = 13987814400.

The previous prime is 16368729277. The next prime is 16368729319. The reversal of 16368729289 is 98292786361.

It is a cyclic number.

It is not a de Polignac number, because 16368729289 - 2⁵ = 16368729257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16368729989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4620859 + ... + 4624399.

It is an arithmetic number, because the mean of its divisors is an integer number (592612020).

Almost surely, 2^16368729289 is an apocalyptic number.

It is an amenable number.

16368729289 is a deficient number, since it is larger than the sum of its proper divisors (2594855351).

16368729289 is a wasteful number, since it uses less digits than its factorization.

16368729289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961.

The product of its digits is 15676416, while the sum is 61.

The spelling of 16368729289 in words is "sixteen billion, three hundred sixty-eight million, seven hundred twenty-nine thousand, two hundred eighty-nine".