20759481500 has 24 divisors (see below), whose sum is σ = 45338708688. Its totient is φ = 8303792400.

The previous prime is 20759481499. The next prime is 20759481551. The reversal of 20759481500 is 518495702.

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 7 ways as a sum of consecutive naturals, for example, 20758982 + ... + 20759981.

It is an arithmetic number, because the mean of its divisors is an integer number (1889112862).

Almost surely, 2^20759481500 is an apocalyptic number.

20759481500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20759481500 is an abundant number, since it is smaller than the sum of its proper divisors (24579227188).

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

20759481500 is a wasteful number, since it uses less digits than its factorization.

20759481500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41518982 (or 41518970 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 41.

The spelling of 20759481500 in words is "twenty billion, seven hundred fifty-nine million, four hundred eighty-one thousand, five hundred".