805836825020 has 24 divisors (see below), whose sum is σ = 1698501835968. Its totient is φ = 321145300800.

The previous prime is 805836824999. The next prime is 805836825097. The reversal of 805836825020 is 20528638508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74333771 + ... + 74344610.

It is an arithmetic number, because the mean of its divisors is an integer number (70770909832).

Almost surely, 2^805836825020 is an apocalyptic number.

It is an amenable number.

805836825020 is an abundant number, since it is smaller than the sum of its proper divisors (892665010948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805836825020 is a wasteful number, since it uses less digits than its factorization.

805836825020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148678661 (or 148678659 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 805836825020 in words is "eight hundred five billion, eight hundred thirty-six million, eight hundred twenty-five thousand, twenty".