20869444626 has 8 divisors (see below), whose sum is σ = 41738889264. Its totient is φ = 6956481540.

The previous prime is 20869444597. The next prime is 20869444669. The reversal of 20869444626 is 62644496802.

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

20869444626 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739120380 + ... + 1739120391.

It is an arithmetic number, because the mean of its divisors is an integer number (5217361158).

Almost surely, 2^20869444626 is an apocalyptic number.

20869444626 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20869444626 is a wasteful number, since it uses less digits than its factorization.

20869444626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478240776.

The product of its (nonzero) digits is 3981312, while the sum is 51.

The spelling of 20869444626 in words is "twenty billion, eight hundred sixty-nine million, four hundred forty-four thousand, six hundred twenty-six".