20485324308 has 24 divisors (see below), whose sum is σ = 48816093312. Its totient is φ = 6683155264.

The previous prime is 20485324289. The next prime is 20485324331. The reversal of 20485324308 is 80342358402.

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, 18160185 + ... + 18161312.

It is an arithmetic number, because the mean of its divisors is an integer number (2034003888).

Almost surely, 2^20485324308 is an apocalyptic number.

It is an amenable number.

20485324308 is an abundant number, since it is smaller than the sum of its proper divisors (28330769004).

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

20485324308 is a wasteful number, since it uses less digits than its factorization.

20485324308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36321551 (or 36321549 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 39.

The spelling of 20485324308 in words is "twenty billion, four hundred eighty-five million, three hundred twenty-four thousand, three hundred eight".