20203678984 has 16 divisors (see below), whose sum is σ = 38080235520. Its totient is φ = 10048949520.

The previous prime is 20203678961. The next prime is 20203678993. The reversal of 20203678984 is 48987630202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6609624 + ... + 6612679.

It is an arithmetic number, because the mean of its divisors is an integer number (2380014720).

Almost surely, 2^20203678984 is an apocalyptic number.

It is an amenable number.

20203678984 is a deficient number, since it is larger than the sum of its proper divisors (17876556536).

20203678984 is a wasteful number, since it uses less digits than its factorization.

20203678984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13222500 (or 13222496 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The spelling of 20203678984 in words is "twenty billion, two hundred three million, six hundred seventy-eight thousand, nine hundred eighty-four".