21469502096 has 120 divisors (see below), whose sum is σ = 51333484536. Its totient is φ = 8643317760.

The previous prime is 21469502077. The next prime is 21469502101. The reversal of 21469502096 is 69020596412.

It can be written as a sum of positive squares in 4 ways, for example, as 14577181696 + 6892320400 = 120736^2 + 83020^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8808590 + ... + 8811026.

Almost surely, 2^21469502096 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 21469502096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25666742268).

21469502096 is an abundant number, since it is smaller than the sum of its proper divisors (29863982440).

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

21469502096 is a wasteful number, since it uses less digits than its factorization.

21469502096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3124 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 21469502096 in words is "twenty-one billion, four hundred sixty-nine million, five hundred two thousand, ninety-six".