20312927208 has 192 divisors, whose sum is σ = 67722969600. Its totient is φ = 5370261120.

The previous prime is 20312927183. The next prime is 20312927249. The reversal of 20312927208 is 80272921302.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 387103 + ... + 436433.

It is an arithmetic number, because the mean of its divisors is an integer number (352723800).

Almost surely, 2^20312927208 is an apocalyptic number.

20312927208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20312927208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33861484800).

20312927208 is an abundant number, since it is smaller than the sum of its proper divisors (47410042392).

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

20312927208 is a wasteful number, since it uses less digits than its factorization.

20312927208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49412 (or 49405 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 20312927208 in words is "twenty billion, three hundred twelve million, nine hundred twenty-seven thousand, two hundred eight".