1426827666 has 64 divisors (see below), whose sum is σ = 3250990080. Its totient is φ = 413501760.

The previous prime is 1426827659. The next prime is 1426827673. The reversal of 1426827666 is 6667286241.

It is an interprime number because it is at equal distance from previous prime (1426827659) and next prime (1426827673).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201315 + ... + 208281.

It is an arithmetic number, because the mean of its divisors is an integer number (50796720).

Almost surely, 2^1426827666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1426827666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625495040).

1426827666 is an abundant number, since it is smaller than the sum of its proper divisors (1824162414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1426827666 is a wasteful number, since it uses less digits than its factorization.

1426827666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7119.

The product of its digits is 1161216, while the sum is 48.

The square root of 1426827666 is about 37773.3724467382. The cubic root of 1426827666 is about 1125.7894484571.

The spelling of 1426827666 in words is "one billion, four hundred twenty-six million, eight hundred twenty-seven thousand, six hundred sixty-six".