427238197797 has 8 divisors (see below), whose sum is σ = 569690445856. Its totient is φ = 284805707472.

The previous prime is 427238197753. The next prime is 427238197811. The reversal of 427238197797 is 797791832724.

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

It is not a de Polignac number, because 427238197797 - 2¹⁰ = 427238196773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427238197297) 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, 4888903 + ... + 4975524.

It is an arithmetic number, because the mean of its divisors is an integer number (71211305732).

Almost surely, 2^427238197797 is an apocalyptic number.

It is an amenable number.

427238197797 is a deficient number, since it is larger than the sum of its proper divisors (142452248059).

427238197797 is a wasteful number, since it uses less digits than its factorization.

427238197797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9878867.

The product of its digits is 74680704, while the sum is 66.

The spelling of 427238197797 in words is "four hundred twenty-seven billion, two hundred thirty-eight million, one hundred ninety-seven thousand, seven hundred ninety-seven".