427042831793 has 4 divisors (see below), whose sum is σ = 427859357808. Its totient is φ = 426226305780.

The previous prime is 427042831777. The next prime is 427042831799. The reversal of 427042831793 is 397138240724.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 427042831793 - 2⁴ = 427042831777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427042831799) 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, 408262223 + ... + 408263268.

It is an arithmetic number, because the mean of its divisors is an integer number (106964839452).

Almost surely, 2^427042831793 is an apocalyptic number.

It is an amenable number.

427042831793 is a deficient number, since it is larger than the sum of its proper divisors (816526015).

427042831793 is an equidigital number, since it uses as much as digits as its factorization.

427042831793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816526014.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 427042831793 in words is "four hundred twenty-seven billion, forty-two million, eight hundred thirty-one thousand, seven hundred ninety-three".