29850239128319 has 4 divisors (see below), whose sum is σ = 29853830790960. Its totient is φ = 29846647465680.

The previous prime is 29850239128289. The next prime is 29850239128373. The reversal of 29850239128319 is 91382193205892.

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-29850239128319 is a prime.

It is a super-2 number, since 2×29850239128319² (a number of 28 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 (29850239128819) 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, 1795818854 + ... + 1795835475.

It is an arithmetic number, because the mean of its divisors is an integer number (7463457697740).

Almost surely, 2^{29850239128319} is an apocalyptic number.

29850239128319 is a deficient number, since it is larger than the sum of its proper divisors (3591662641).

29850239128319 is an equidigital number, since it uses as much as digits as its factorization.

29850239128319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3591662640.

The product of its (nonzero) digits is 16796160, while the sum is 62.

The spelling of 29850239128319 in words is "twenty-nine trillion, eight hundred fifty billion, two hundred thirty-nine million, one hundred twenty-eight thousand, three hundred nineteen".