20457246344027 has 4 divisors (see below), whose sum is σ = 20504491717080. Its totient is φ = 20410000970976.

The previous prime is 20457246343999. The next prime is 20457246344069. The reversal of 20457246344027 is 72044364275402.

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 20457246344027 - 2²⁸ = 20456977908571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20457246341027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23622685877 + ... + 23622686742.

It is an arithmetic number, because the mean of its divisors is an integer number (5126122929270).

Almost surely, 2^{20457246344027} is an apocalyptic number.

20457246344027 is a deficient number, since it is larger than the sum of its proper divisors (47245373053).

20457246344027 is an equidigital number, since it uses as much as digits as its factorization.

20457246344027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47245373052.

The product of its (nonzero) digits is 9031680, while the sum is 50.

The spelling of 20457246344027 in words is "twenty trillion, four hundred fifty-seven billion, two hundred forty-six million, three hundred forty-four thousand, twenty-seven".