20590143286049 has 4 divisors (see below), whose sum is σ = 20590300544580. Its totient is φ = 20589986027520.

The previous prime is 20590143286007. The next prime is 20590143286051. The reversal of 20590143286049 is 94068234109502.

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 7647813259024 + 12942330027025 = 2765468^2 + 3597545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20590143286049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20590143286549) 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, 78432704 + ... + 78694785.

It is an arithmetic number, because the mean of its divisors is an integer number (5147575136145).

Almost surely, 2^{20590143286049} is an apocalyptic number.

It is an amenable number.

20590143286049 is a deficient number, since it is larger than the sum of its proper divisors (157258531).

20590143286049 is a wasteful number, since it uses less digits than its factorization.

20590143286049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157258530.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 20590143286049 in words is "twenty trillion, five hundred ninety billion, one hundred forty-three million, two hundred eighty-six thousand, forty-nine".