1428672256025 has 12 divisors (see below), whose sum is σ = 2024632683072. Its totient is φ = 979660975440.

The previous prime is 1428672255977. The next prime is 1428672256043. The reversal of 1428672256025 is 5206522768241.

It is a de Polignac number, because none of the positive numbers 2^k-1428672256025 is a prime.

It is a super-2 number, since 2×1428672256025² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4081920557 + ... + 4081920906.

It is an arithmetic number, because the mean of its divisors is an integer number (168719390256).

Almost surely, 2^{1428672256025} is an apocalyptic number.

It is an amenable number.

1428672256025 is a deficient number, since it is larger than the sum of its proper divisors (595960427047).

1428672256025 is an equidigital number, since it uses as much as digits as its factorization.

1428672256025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8163841480 (or 8163841475 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 1428672256025 in words is "one trillion, four hundred twenty-eight billion, six hundred seventy-two million, two hundred fifty-six thousand, twenty-five".