20258326812 has 48 divisors (see below), whose sum is σ = 48453848352. Its totient is φ = 6583787520.

The previous prime is 20258326787. The next prime is 20258326849. The reversal of 20258326812 is 21862385202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792828 + ... + 817980.

It is an arithmetic number, because the mean of its divisors is an integer number (1009455174).

Almost surely, 2^20258326812 is an apocalyptic number.

It is an amenable number.

20258326812 is an abundant number, since it is smaller than the sum of its proper divisors (28195521540).

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

20258326812 is a wasteful number, since it uses less digits than its factorization.

20258326812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26838 (or 26836 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 20258326812 in words is "twenty billion, two hundred fifty-eight million, three hundred twenty-six thousand, eight hundred twelve".