1791271825 has 12 divisors (see below), whose sum is σ = 2538488320. Its totient is φ = 1228300560.

The previous prime is 1791271817. The next prime is 1791271831. The reversal of 1791271825 is 5281721971.

It is not a de Polignac number, because 1791271825 - 2³ = 1791271817 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 5117745 + ... + 5118094.

Almost surely, 2^1791271825 is an apocalyptic number.

It is an amenable number.

1791271825 is a deficient number, since it is larger than the sum of its proper divisors (747216495).

1791271825 is a wasteful number, since it uses less digits than its factorization.

1791271825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10235856 (or 10235851 counting only the distinct ones).

The product of its digits is 70560, while the sum is 43.

The square root of 1791271825 is about 42323.4193443772. The cubic root of 1791271825 is about 1214.4710450194.

The spelling of 1791271825 in words is "one billion, seven hundred ninety-one million, two hundred seventy-one thousand, eight hundred twenty-five".