426550229591 has 4 divisors (see below), whose sum is σ = 426615950184. Its totient is φ = 426484509000.

The previous prime is 426550229587. The next prime is 426550229639. The reversal of 426550229591 is 195922055624.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 426550229591 - 2² = 426550229587 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 (426550229561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32850560 + ... + 32863541.

It is an arithmetic number, because the mean of its divisors is an integer number (106653987546).

Almost surely, 2^426550229591 is an apocalyptic number.

426550229591 is a deficient number, since it is larger than the sum of its proper divisors (65720593).

426550229591 is an equidigital number, since it uses as much as digits as its factorization.

426550229591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65720592.

The product of its (nonzero) digits is 1944000, while the sum is 50.

The spelling of 426550229591 in words is "four hundred twenty-six billion, five hundred fifty million, two hundred twenty-nine thousand, five hundred ninety-one".