1428785807930 has 16 divisors (see below), whose sum is σ = 2769646335624. Its totient is φ = 527551682880.

The previous prime is 1428785807929. The next prime is 1428785807957. The reversal of 1428785807930 is 397085878241.

It can be written as a sum of positive squares in 4 ways, for example, as 957683403769 + 471102404161 = 978613^2 + 686369^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5495329901 + ... + 5495330160.

Almost surely, 2^{1428785807930} is an apocalyptic number.

1428785807930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428785807930 is a deficient number, since it is larger than the sum of its proper divisors (1340860527694).

1428785807930 is a wasteful number, since it uses less digits than its factorization.

1428785807930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10990660081.

The product of its (nonzero) digits is 27095040, while the sum is 62.

The spelling of 1428785807930 in words is "one trillion, four hundred twenty-eight billion, seven hundred eighty-five million, eight hundred seven thousand, nine hundred thirty".