21774667096 has 96 divisors (see below), whose sum is σ = 52155878400. Its totient is φ = 8336165760.

The previous prime is 21774667069. The next prime is 21774667133. The reversal of 21774667096 is 69076647712.

It is a super-2 number, since 2×21774667096² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256275 + ... + 330493.

It is an arithmetic number, because the mean of its divisors is an integer number (543290400).

Almost surely, 2^21774667096 is an apocalyptic number.

21774667096 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21774667096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26077939200).

21774667096 is an abundant number, since it is smaller than the sum of its proper divisors (30381211304).

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

21774667096 is a wasteful number, since it uses less digits than its factorization.

21774667096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74289 (or 74272 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 55.

The spelling of 21774667096 in words is "twenty-one billion, seven hundred seventy-four million, six hundred sixty-seven thousand, ninety-six".