20368541594281 has 4 divisors (see below), whose sum is σ = 20368688850064. Its totient is φ = 20368394338500.

The previous prime is 20368541594243. The next prime is 20368541594321. The reversal of 20368541594281 is 18249514586302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20368541594281 - 2³⁵ = 20334181855913 is a prime.

It is a super-2 number, since 2×20368541594281² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20368541594201) 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, 73420215 + ... + 73697116.

It is an arithmetic number, because the mean of its divisors is an integer number (5092172212516).

Almost surely, 2^{20368541594281} is an apocalyptic number.

It is an amenable number.

20368541594281 is a deficient number, since it is larger than the sum of its proper divisors (147255783).

20368541594281 is a wasteful number, since it uses less digits than its factorization.

20368541594281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147255782.

The product of its (nonzero) digits is 16588800, while the sum is 58.

The spelling of 20368541594281 in words is "twenty trillion, three hundred sixty-eight billion, five hundred forty-one million, five hundred ninety-four thousand, two hundred eighty-one".