1428575885890 has 16 divisors (see below), whose sum is σ = 2634154561080. Its totient is φ = 557493028480.

The previous prime is 1428575885887. The next prime is 1428575885951. The reversal of 1428575885890 is 985885758241.

It can be written as a sum of positive squares in 4 ways, for example, as 372303767889 + 1056272118001 = 610167^2 + 1027751^2 .

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, 1742165305 + ... + 1742166124.

Almost surely, 2^{1428575885890} is an apocalyptic number.

1428575885890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1428575885890 is a deficient number, since it is larger than the sum of its proper divisors (1205578675190).

1428575885890 is a wasteful number, since it uses less digits than its factorization.

1428575885890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3484331477.

The product of its (nonzero) digits is 258048000, while the sum is 70.

The spelling of 1428575885890 in words is "one trillion, four hundred twenty-eight billion, five hundred seventy-five million, eight hundred eighty-five thousand, eight hundred ninety".