20058885493 has 4 divisors (see below), whose sum is σ = 20236397868. Its totient is φ = 19881373120.

The previous prime is 20058885439. The next prime is 20058885499. The reversal of 20058885493 is 39458885002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2623795729 + 17435089764 = 51223^2 + 132042^2 .

It is a cyclic number.

It is not a de Polignac number, because 20058885493 - 2¹⁷ = 20058754421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20058885493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20058885499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88756018 + ... + 88756243.

It is an arithmetic number, because the mean of its divisors is an integer number (5059099467).

Almost surely, 2^20058885493 is an apocalyptic number.

It is an amenable number.

20058885493 is a deficient number, since it is larger than the sum of its proper divisors (177512375).

20058885493 is a wasteful number, since it uses less digits than its factorization.

20058885493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177512374.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 20058885493 in words is "twenty billion, fifty-eight million, eight hundred eighty-five thousand, four hundred ninety-three".