1426788993 has 32 divisors (see below), whose sum is σ = 2216263680. Its totient is φ = 799666560.

The previous prime is 1426788967. The next prime is 1426788997. The reversal of 1426788993 is 3998876241.

It is not a de Polignac number, because 1426788993 - 2⁹ = 1426788481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1426788997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234358 + ... + 240368.

It is an arithmetic number, because the mean of its divisors is an integer number (69258240).

Almost surely, 2^1426788993 is an apocalyptic number.

It is an amenable number.

1426788993 is a deficient number, since it is larger than the sum of its proper divisors (789474687).

1426788993 is a wasteful number, since it uses less digits than its factorization.

1426788993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6237.

The product of its digits is 5225472, while the sum is 57.

The square root of 1426788993 is about 37772.8605350455. The cubic root of 1426788993 is about 1125.7792771637.

The spelling of 1426788993 in words is "one billion, four hundred twenty-six million, seven hundred eighty-eight thousand, nine hundred ninety-three".