20650248726 has 16 divisors (see below), whose sum is σ = 41315832000. Its totient is φ = 6880860488.

The previous prime is 20650248719. The next prime is 20650248739. The reversal of 20650248726 is 62784205602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621396 + ... + 653783.

It is an arithmetic number, because the mean of its divisors is an integer number (2582239500).

Almost surely, 2^20650248726 is an apocalyptic number.

20650248726 is an abundant number, since it is smaller than the sum of its proper divisors (20665583274).

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

20650248726 is a wasteful number, since it uses less digits than its factorization.

20650248726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277883.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 20650248726 in words is "twenty billion, six hundred fifty million, two hundred forty-eight thousand, seven hundred twenty-six".