805391298825 has 24 divisors (see below), whose sum is σ = 1331620999968. Its totient is φ = 429528890880.

The previous prime is 805391298821. The next prime is 805391298841. The reversal of 805391298825 is 528892193508.

805391298825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 805391298825 - 2² = 805391298821 is a prime.

It is not an unprimeable number, because it can be changed into a prime (805391298821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2616702 + ... + 2908248.

It is an arithmetic number, because the mean of its divisors is an integer number (55484208332).

Almost surely, 2^805391298825 is an apocalyptic number.

It is an amenable number.

805391298825 is a deficient number, since it is larger than the sum of its proper divisors (526229701143).

805391298825 is a wasteful number, since it uses less digits than its factorization.

805391298825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328393 (or 328388 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 60.

The spelling of 805391298825 in words is "eight hundred five billion, three hundred ninety-one million, two hundred ninety-eight thousand, eight hundred twenty-five".