427254565657 has 4 divisors (see below), whose sum is σ = 449741648080. Its totient is φ = 404767483236.

The previous prime is 427254565651. The next prime is 427254565813. The reversal of 427254565657 is 756565452724.

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 427254565657 - 2¹⁵ = 427254532889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427254565651) 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, 11243541183 + ... + 11243541220.

It is an arithmetic number, because the mean of its divisors is an integer number (112435412020).

Almost surely, 2^427254565657 is an apocalyptic number.

It is an amenable number.

427254565657 is a deficient number, since it is larger than the sum of its proper divisors (22487082423).

427254565657 is a wasteful number, since it uses less digits than its factorization.

427254565657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22487082422.

The product of its digits is 70560000, while the sum is 58.

The spelling of 427254565657 in words is "four hundred twenty-seven billion, two hundred fifty-four million, five hundred sixty-five thousand, six hundred fifty-seven".