20310678208 has 28 divisors (see below), whose sum is σ = 41604135232. Its totient is φ = 9827746560.

The previous prime is 20310678203. The next prime is 20310678251. The reversal of 20310678208 is 80287601302.

It is not an unprimeable number, because it can be changed into a prime (20310678203) 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, 5116635 + ... + 5120602.

Almost surely, 2^20310678208 is an apocalyptic number.

It is an amenable number.

20310678208 is an abundant number, since it is smaller than the sum of its proper divisors (21293457024).

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

20310678208 is a wasteful number, since it uses less digits than its factorization.

20310678208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10237280 (or 10237270 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 20310678208 in words is "twenty billion, three hundred ten million, six hundred seventy-eight thousand, two hundred eight".