20978094050 has 48 divisors (see below), whose sum is σ = 39408906240. Its totient is φ = 8307613440.

The previous prime is 20978094031. The next prime is 20978094073. The reversal of 20978094050 is 5049087902.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20978093992 and 20978094010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7224899 + ... + 7227801.

It is an arithmetic number, because the mean of its divisors is an integer number (821018880).

Almost surely, 2^20978094050 is an apocalyptic number.

20978094050 is a deficient number, since it is larger than the sum of its proper divisors (18430812190).

20978094050 is a wasteful number, since it uses less digits than its factorization.

20978094050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4307 (or 4302 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 20978094050 in words is "twenty billion, nine hundred seventy-eight million, ninety-four thousand, fifty".