20930811378 has 8 divisors (see below), whose sum is σ = 41861622768. Its totient is φ = 6976937124.

The previous prime is 20930811301. The next prime is 20930811401. The reversal of 20930811378 is 87311803902.

It is a sphenic number, since it is the product of 3 distinct primes.

20930811378 is an admirable number.

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, 1744234276 + ... + 1744234287.

It is an arithmetic number, because the mean of its divisors is an integer number (5232702846).

Almost surely, 2^20930811378 is an apocalyptic number.

20930811378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20930811378 is a wasteful number, since it uses less digits than its factorization.

20930811378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488468568.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 20930811378 in words is "twenty billion, nine hundred thirty million, eight hundred eleven thousand, three hundred seventy-eight".