21934706704 has 40 divisors (see below), whose sum is σ = 43918062080. Its totient is φ = 10601798400.

The previous prime is 21934706699. The next prime is 21934706741. The reversal of 21934706704 is 40760743912.

It is a super-2 number, since 2×21934706704² (a number of 21 digits) contains 22 as substring.

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, 431764 + ... + 479884.

It is an arithmetic number, because the mean of its divisors is an integer number (1097951552).

Almost surely, 2^21934706704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21934706704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21959031040).

21934706704 is an abundant number, since it is smaller than the sum of its proper divisors (21983355376).

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

21934706704 is a wasteful number, since it uses less digits than its factorization.

21934706704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49079 (or 49073 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 21934706704 in words is "twenty-one billion, nine hundred thirty-four million, seven hundred six thousand, seven hundred four".