427229127609 has 4 divisors (see below), whose sum is σ = 569638836816. Its totient is φ = 284819418404.

The previous prime is 427229127593. The next prime is 427229127641. The reversal of 427229127609 is 906721922724.

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 427229127609 - 2⁴ = 427229127593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (427229120609) 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, 71204854599 + ... + 71204854604.

It is an arithmetic number, because the mean of its divisors is an integer number (142409709204).

Almost surely, 2^427229127609 is an apocalyptic number.

It is an amenable number.

427229127609 is a deficient number, since it is larger than the sum of its proper divisors (142409709207).

427229127609 is a wasteful number, since it uses less digits than its factorization.

427229127609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142409709206.

The product of its (nonzero) digits is 1524096, while the sum is 51.

The spelling of 427229127609 in words is "four hundred twenty-seven billion, two hundred twenty-nine million, one hundred twenty-seven thousand, six hundred nine".