20881498934 has 8 divisors (see below), whose sum is σ = 32684085360. Its totient is φ = 9986803816.

The previous prime is 20881498933. The next prime is 20881498951. The reversal of 20881498934 is 43989418802.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20881498934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20881498931) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 226972769 + ... + 226972860.

It is an arithmetic number, because the mean of its divisors is an integer number (4085510670).

Almost surely, 2^20881498934 is an apocalyptic number.

20881498934 is a deficient number, since it is larger than the sum of its proper divisors (11802586426).

20881498934 is a wasteful number, since it uses less digits than its factorization.

20881498934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453945654.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 20881498934 in words is "twenty billion, eight hundred eighty-one million, four hundred ninety-eight thousand, nine hundred thirty-four".