20368485508 has 12 divisors (see below), whose sum is σ = 40736971072. Its totient is φ = 8729350920.

The previous prime is 20368485503. The next prime is 20368485509. The reversal of 20368485508 is 80558486302.

20368485508 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20368485503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363722928 + ... + 363722983.

Almost surely, 2^20368485508 is an apocalyptic number.

20368485508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20368485508 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20368485508 is a wasteful number, since it uses less digits than its factorization.

20368485508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727445922 (or 727445920 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 20368485508 in words is "twenty billion, three hundred sixty-eight million, four hundred eighty-five thousand, five hundred eight".