21114535050 has 144 divisors (see below), whose sum is σ = 64882097280. Its totient is φ = 4822427520.

The previous prime is 21114535037. The next prime is 21114535051. The reversal of 21114535050 is 5053541112.

21114535050 is a `hidden beast` number, since 2 + 11 + 145 + 3 + 505 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (21114535051) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7271899 + ... + 7274801.

It is an arithmetic number, because the mean of its divisors is an integer number (450570120).

Almost surely, 2^21114535050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21114535050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32441048640).

21114535050 is an abundant number, since it is smaller than the sum of its proper divisors (43767562230).

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

21114535050 is a wasteful number, since it uses less digits than its factorization.

21114535050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237 (or 5229 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 21114535050 in words is "twenty-one billion, one hundred fourteen million, five hundred thirty-five thousand, fifty".