20034716851391 has 8 divisors (see below), whose sum is σ = 21872905999824. Its totient is φ = 18199336245120.

The previous prime is 20034716851379. The next prime is 20034716851397. The reversal of 20034716851391 is 19315861743002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20034716851391 - 2¹⁸ = 20034716589247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20034716851397) 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, 702120620 + ... + 702149153.

It is an arithmetic number, because the mean of its divisors is an integer number (2734113249978).

It is a 1-persistent number, because it is pandigital, but 2⋅20034716851391 = 40069433702782 is not.

Almost surely, 2^{20034716851391} is an apocalyptic number.

20034716851391 is a deficient number, since it is larger than the sum of its proper divisors (1838189148433).

20034716851391 is a wasteful number, since it uses less digits than its factorization.

20034716851391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404271081.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 20034716851391 in words is "twenty trillion, thirty-four billion, seven hundred sixteen million, eight hundred fifty-one thousand, three hundred ninety-one".