20104740878 has 8 divisors (see below), whose sum is σ = 30162381480. Its totient is φ = 10050613720.

The previous prime is 20104740871. The next prime is 20104740881. The reversal of 20104740878 is 87804740102.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104740871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864008 + ... + 886971.

It is an arithmetic number, because the mean of its divisors is an integer number (3770297685).

Almost surely, 2^20104740878 is an apocalyptic number.

20104740878 is a deficient number, since it is larger than the sum of its proper divisors (10057640602).

20104740878 is a wasteful number, since it uses less digits than its factorization.

20104740878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756722.

The product of its (nonzero) digits is 100352, while the sum is 41.

The spelling of 20104740878 in words is "twenty billion, one hundred four million, seven hundred forty thousand, eight hundred seventy-eight".