1428825386755 has 16 divisors (see below), whose sum is σ = 1943665305120. Its totient is φ = 999599298048.

The previous prime is 1428825386753. The next prime is 1428825386777. The reversal of 1428825386755 is 5576835288241.

It is a happy number.

It is not a de Polignac number, because 1428825386755 - 2¹ = 1428825386753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1428825386753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578470582 + ... + 578473051.

It is an arithmetic number, because the mean of its divisors is an integer number (121479081570).

Almost surely, 2^{1428825386755} is an apocalyptic number.

1428825386755 is a deficient number, since it is larger than the sum of its proper divisors (514839918365).

1428825386755 is a wasteful number, since it uses less digits than its factorization.

1428825386755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156943670.

The product of its digits is 129024000, while the sum is 64.

The spelling of 1428825386755 in words is "one trillion, four hundred twenty-eight billion, eight hundred twenty-five million, three hundred eighty-six thousand, seven hundred fifty-five".