427645562943 has 4 divisors (see below), whose sum is σ = 570194083928. Its totient is φ = 285097041960.

The previous prime is 427645562941. The next prime is 427645562959. The reversal of 427645562943 is 349265546724.

427645562943 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 427645562943 - 2¹ = 427645562941 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 (427645562941) 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, 71274260488 + ... + 71274260493.

It is an arithmetic number, because the mean of its divisors is an integer number (142548520982).

Almost surely, 2^427645562943 is an apocalyptic number.

427645562943 is a deficient number, since it is larger than the sum of its proper divisors (142548520985).

427645562943 is a wasteful number, since it uses less digits than its factorization.

427645562943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142548520984.

The product of its digits is 43545600, while the sum is 57.

The spelling of 427645562943 in words is "four hundred twenty-seven billion, six hundred forty-five million, five hundred sixty-two thousand, nine hundred forty-three".