20085502068431 has 4 divisors (see below), whose sum is σ = 20088425303664. Its totient is φ = 20082578833200.

The previous prime is 20085502068427. The next prime is 20085502068439. The reversal of 20085502068431 is 13486020558002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20085502068431 - 2² = 20085502068427 is a prime.

It is a super-2 number, since 2×20085502068431² (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 (20085502068439) 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, 1461607310 + ... + 1461621051.

It is an arithmetic number, because the mean of its divisors is an integer number (5022106325916).

Almost surely, 2^{20085502068431} is an apocalyptic number.

20085502068431 is a deficient number, since it is larger than the sum of its proper divisors (2923235233).

20085502068431 is an equidigital number, since it uses as much as digits as its factorization.

20085502068431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923235232.

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 20085502068431 in words is "twenty trillion, eighty-five billion, five hundred two million, sixty-eight thousand, four hundred thirty-one".