1428532558256 has 10 divisors (see below), whose sum is σ = 2767781831652. Its totient is φ = 714266279120.

The previous prime is 1428532558249. The next prime is 1428532558309. The reversal of 1428532558256 is 6528552358241.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44641642430 + ... + 44641642461.

Almost surely, 2^{1428532558256} is an apocalyptic number.

1428532558256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1428532558256 is a deficient number, since it is larger than the sum of its proper divisors (1339249273396).

1428532558256 is an equidigital number, since it uses as much as digits as its factorization.

1428532558256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89283284899 (or 89283284893 counting only the distinct ones).

The product of its digits is 23040000, while the sum is 56.

The spelling of 1428532558256 in words is "one trillion, four hundred twenty-eight billion, five hundred thirty-two million, five hundred fifty-eight thousand, two hundred fifty-six".