819633275025 has 24 divisors (see below), whose sum is σ = 1355222900064. Its totient is φ = 437106816000.

The previous prime is 819633275011. The next prime is 819633275033. The reversal of 819633275025 is 520572336918.

It is not a de Polignac number, because 819633275025 - 2⁴ = 819633275009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 700642 + ... + 1459508.

It is an arithmetic number, because the mean of its divisors is an integer number (56467620836).

Almost surely, 2^819633275025 is an apocalyptic number.

It is an amenable number.

819633275025 is a deficient number, since it is larger than the sum of its proper divisors (535589625039).

819633275025 is a wasteful number, since it uses less digits than its factorization.

819633275025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773281 (or 773276 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 819633275025 in words is "eight hundred nineteen billion, six hundred thirty-three million, two hundred seventy-five thousand, twenty-five".