20485738326 has 32 divisors (see below), whose sum is σ = 43137129600. Its totient is φ = 6467791680.

The previous prime is 20485738313. The next prime is 20485738379. The reversal of 20485738326 is 62383758402.

It is a happy number.

It is a super-2 number, since 2×20485738326² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601186 + ... + 634346.

It is an arithmetic number, because the mean of its divisors is an integer number (1348035300).

Almost surely, 2^20485738326 is an apocalyptic number.

20485738326 is an abundant number, since it is smaller than the sum of its proper divisors (22651391274).

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

20485738326 is a wasteful number, since it uses less digits than its factorization.

20485738326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38604.

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 20485738326 in words is "twenty billion, four hundred eighty-five million, seven hundred thirty-eight thousand, three hundred twenty-six".