20242617918 has 8 divisors (see below), whose sum is σ = 40485235848. Its totient is φ = 6747539304.

The previous prime is 20242617907. The next prime is 20242617937. The reversal of 20242617918 is 81971624202.

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

20242617918 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20242617918.

It is a congruent 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, 1686884821 + ... + 1686884832.

It is an arithmetic number, because the mean of its divisors is an integer number (5060654481).

Almost surely, 2^20242617918 is an apocalyptic number.

20242617918 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.

20242617918 is a wasteful number, since it uses less digits than its factorization.

20242617918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373769658.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 20242617918 in words is "twenty billion, two hundred forty-two million, six hundred seventeen thousand, nine hundred eighteen".