1427117766 has 16 divisors (see below), whose sum is σ = 2875071024. Its totient is φ = 472233344.

The previous prime is 1427117693. The next prime is 1427117773. The reversal of 1427117766 is 6677117241.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 867255 + ... + 868898.

It is an arithmetic number, because the mean of its divisors is an integer number (179691939).

Almost surely, 2^1427117766 is an apocalyptic number.

1427117766 is an abundant number, since it is smaller than the sum of its proper divisors (1447953258).

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

1427117766 is a wasteful number, since it uses less digits than its factorization.

1427117766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736295.

The product of its digits is 98784, while the sum is 42.

The square root of 1427117766 is about 37777.2122581855. The cubic root of 1427117766 is about 1125.8657411062.

The spelling of 1427117766 in words is "one billion, four hundred twenty-seven million, one hundred seventeen thousand, seven hundred sixty-six".