20933441634 has 32 divisors (see below), whose sum is σ = 50366177280. Its totient is φ = 5666194512.

The previous prime is 20933441621. The next prime is 20933441663. The reversal of 20933441634 is 43614433902.

It is a junction number, because it is equal to n+sod(n) for n = 20933441592 and 20933441601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13115394 + ... + 13116989.

It is an arithmetic number, because the mean of its divisors is an integer number (1573943040).

Almost surely, 2^20933441634 is an apocalyptic number.

20933441634 is an abundant number, since it is smaller than the sum of its proper divisors (29432735646).

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

20933441634 is a wasteful number, since it uses less digits than its factorization.

20933441634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26232414.

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 20933441634 in words is "twenty billion, nine hundred thirty-three million, four hundred forty-one thousand, six hundred thirty-four".