1428194695041 has 9 divisors (see below), whose sum is σ = 2062953071491. Its totient is φ = 952127406552.

The previous prime is 1428194695013. The next prime is 1428194695061. The reversal of 1428194695041 is 1405964918241.

The square root of 1428194695041 is 1195071.

It is a perfect power (a square), and thus also a powerful number.

1428194695041 is a `hidden beast` number, since 1 + 42 + 8 + 1 + 94 + 6 + 9 + 504 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1425385271025 + 2809424016 = 1193895^2 + 53004^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 1428194695041 - 2³³ = 1419604760449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1428194695061) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 3386035 + ... + 3784391.

Almost surely, 2^{1428194695041} is an apocalyptic number.

1428194695041 is the 1195071-st square number.

1428194695041 is the 597536-th centered octagonal number.

It is an amenable number.

1428194695041 is a deficient number, since it is larger than the sum of its proper divisors (634758376450).

1428194695041 is an frugal number, since it uses more digits than its factorization.

1428194695041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796720 (or 398360 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 1428194695041 in words is "one trillion, four hundred twenty-eight billion, one hundred ninety-four million, six hundred ninety-five thousand, forty-one".