20893618926 has 32 divisors (see below), whose sum is σ = 48873964800. Its totient is φ = 6597984600.

The previous prime is 20893618909. The next prime is 20893618927. The reversal of 20893618926 is 62981639802.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20893618927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10181050 + ... + 10183101.

It is an arithmetic number, because the mean of its divisors is an integer number (1527311400).

Almost surely, 2^20893618926 is an apocalyptic number.

20893618926 is an abundant number, since it is smaller than the sum of its proper divisors (27980345874).

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

20893618926 is a wasteful number, since it uses less digits than its factorization.

20893618926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20364181 (or 20364175 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 20893618926 in words is "twenty billion, eight hundred ninety-three million, six hundred eighteen thousand, nine hundred twenty-six".