20938300518 has 16 divisors (see below), whose sum is σ = 43008401520. Its totient is φ = 6790800096.

The previous prime is 20938300517. The next prime is 20938300531. The reversal of 20938300518 is 81500383902.

It is a super-3 number, since 3×20938300518³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20938300517) 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 7 ways as a sum of consecutive naturals, for example, 47158113 + ... + 47158556.

It is an arithmetic number, because the mean of its divisors is an integer number (2688025095).

Almost surely, 2^20938300518 is an apocalyptic number.

20938300518 is an abundant number, since it is smaller than the sum of its proper divisors (22070101002).

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

20938300518 is a wasteful number, since it uses less digits than its factorization.

20938300518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94316711.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 20938300518 in words is "twenty billion, nine hundred thirty-eight million, three hundred thousand, five hundred eighteen".