16389428139029 has 4 divisors (see below), whose sum is σ = 17879376151680. Its totient is φ = 14899480126380.

The previous prime is 16389428138999. The next prime is 16389428139067. The reversal of 16389428139029 is 92093182498361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16389428139029 is a prime.

It is a super-2 number, since 2×16389428139029² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16389428139089) 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, 744974006309 + ... + 744974006330.

It is an arithmetic number, because the mean of its divisors is an integer number (4469844037920).

Almost surely, 2^{16389428139029} is an apocalyptic number.

It is an amenable number.

16389428139029 is a deficient number, since it is larger than the sum of its proper divisors (1489948012651).

16389428139029 is a wasteful number, since it uses less digits than its factorization.

16389428139029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489948012650.

The product of its (nonzero) digits is 40310784, while the sum is 65.

The spelling of 16389428139029 in words is "sixteen trillion, three hundred eighty-nine billion, four hundred twenty-eight million, one hundred thirty-nine thousand, twenty-nine".