20321548794 has 48 divisors (see below), whose sum is σ = 45133051392. Its totient is φ = 6604706304.

The previous prime is 20321548789. The next prime is 20321548861. The reversal of 20321548794 is 49784512302.

20321548794 is a `hidden beast` number, since 2 + 0 + 32 + 1 + 548 + 79 + 4 = 666.

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 23 ways as a sum of consecutive naturals, for example, 423847 + ... + 469349.

It is an arithmetic number, because the mean of its divisors is an integer number (940271904).

Almost surely, 2^20321548794 is an apocalyptic number.

20321548794 is an abundant number, since it is smaller than the sum of its proper divisors (24811502598).

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

20321548794 is a wasteful number, since it uses less digits than its factorization.

20321548794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46131 (or 46128 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 20321548794 in words is "twenty billion, three hundred twenty-one million, five hundred forty-eight thousand, seven hundred ninety-four".