20286511443026 has 16 divisors (see below), whose sum is σ = 30476056697496. Its totient is φ = 10127827197696.

The previous prime is 20286511443017. The next prime is 20286511443049. The reversal of 20286511443026 is 62034411568202.

It is a Cunningham number, because it is equal to 4504055²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 20166826581001 + 119684862025 = 4490749^2 + 345955^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31578170 + ... + 32214186.

Almost surely, 2^{20286511443026} is an apocalyptic number.

20286511443026 is a deficient number, since it is larger than the sum of its proper divisors (10189545254470).

20286511443026 is a wasteful number, since it uses less digits than its factorization.

20286511443026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660253.

The product of its (nonzero) digits is 552960, while the sum is 44.

The spelling of 20286511443026 in words is "twenty trillion, two hundred eighty-six billion, five hundred eleven million, four hundred forty-three thousand, twenty-six".