20117037457427 has 8 divisors (see below), whose sum is σ = 20136299822352. Its totient is φ = 20097775663200.

The previous prime is 20117037457417. The next prime is 20117037457457. The reversal of 20117037457427 is 72475473071102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20117037457427 - 2¹⁰ = 20117037456403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20117037457417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113297177 + ... + 113474597.

It is an arithmetic number, because the mean of its divisors is an integer number (2517037477794).

Almost surely, 2^{20117037457427} is an apocalyptic number.

20117037457427 is a deficient number, since it is larger than the sum of its proper divisors (19262364925).

20117037457427 is a wasteful number, since it uses less digits than its factorization.

20117037457427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285349.

The product of its (nonzero) digits is 2304960, while the sum is 50.

The spelling of 20117037457427 in words is "twenty trillion, one hundred seventeen billion, thirty-seven million, four hundred fifty-seven thousand, four hundred twenty-seven".