20773892202 has 128 divisors (see below), whose sum is σ = 49490431488. Its totient is φ = 5689958400.

The previous prime is 20773892179. The next prime is 20773892207. The reversal of 20773892202 is 20229837702.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (20773892207) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49343952 + ... + 49344372.

It is an arithmetic number, because the mean of its divisors is an integer number (386643996).

Almost surely, 2^20773892202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20773892202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24745215744).

20773892202 is an abundant number, since it is smaller than the sum of its proper divisors (28716539286).

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

20773892202 is a wasteful number, since it uses less digits than its factorization.

20773892202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864.

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 20773892202 in words is "twenty billion, seven hundred seventy-three million, eight hundred ninety-two thousand, two hundred two".