20978094010 has 32 divisors (see below), whose sum is σ = 41271524352. Its totient is φ = 7642871040.

The previous prime is 20978093999. The next prime is 20978094013. The reversal of 20978094010 is 1049087902.

It is not an unprimeable number, because it can be changed into a prime (20978094013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1985062 + ... + 1995601.

It is an arithmetic number, because the mean of its divisors is an integer number (1289735136).

Almost surely, 2^20978094010 is an apocalyptic number.

20978094010 is a deficient number, since it is larger than the sum of its proper divisors (20293430342).

20978094010 is a wasteful number, since it uses less digits than its factorization.

20978094010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980718.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 20978094010 in words is "twenty billion, nine hundred seventy-eight million, ninety-four thousand, ten".