20344637472027 has 16 divisors (see below), whose sum is σ = 29592406892160. Its totient is φ = 12329997094400.

The previous prime is 20344637472023. The next prime is 20344637472031. The reversal of 20344637472027 is 72027473644302.

It is an interprime number because it is at equal distance from previous prime (20344637472023) and next prime (20344637472031).

It is a cyclic number.

It is not a de Polignac number, because 20344637472027 - 2² = 20344637472023 is a prime.

It is a super-2 number, since 2×20344637472027² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20344637472023) 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 15 ways as a sum of consecutive naturals, for example, 2805499 + ... + 6968507.

It is an arithmetic number, because the mean of its divisors is an integer number (1849525430760).

Almost surely, 2^{20344637472027} is an apocalyptic number.

20344637472027 is a deficient number, since it is larger than the sum of its proper divisors (9247769420133).

20344637472027 is a wasteful number, since it uses less digits than its factorization.

20344637472027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311114.

The product of its (nonzero) digits is 9483264, while the sum is 51.

The spelling of 20344637472027 in words is "twenty trillion, three hundred forty-four billion, six hundred thirty-seven million, four hundred seventy-two thousand, twenty-seven".