1426643565 has 8 divisors (see below), whose sum is σ = 2282629728. Its totient is φ = 760876560.

The previous prime is 1426643527. The next prime is 1426643639. The reversal of 1426643565 is 5653466241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1426643565 - 2⁶ = 1426643501 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47554771 + ... + 47554800.

It is an arithmetic number, because the mean of its divisors is an integer number (285328716).

Almost surely, 2^1426643565 is an apocalyptic number.

1426643565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1426643565 is a deficient number, since it is larger than the sum of its proper divisors (855986163).

1426643565 is an equidigital number, since it uses as much as digits as its factorization.

1426643565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95109579.

The product of its digits is 518400, while the sum is 42.

The square root of 1426643565 is about 37770.9354530703. The cubic root of 1426643565 is about 1125.7410268472.

The spelling of 1426643565 in words is "one billion, four hundred twenty-six million, six hundred forty-three thousand, five hundred sixty-five".