21334505262 has 64 divisors (see below), whose sum is σ = 51400404480. Its totient is φ = 5766961536.

The previous prime is 21334505261. The next prime is 21334505263. The reversal of 21334505262 is 26250543312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21334505261) and next prime (21334505263).

It is a super-2 number, since 2×21334505262² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21334505261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 586428 + ... + 621744.

It is an arithmetic number, because the mean of its divisors is an integer number (803131320).

Almost surely, 2^21334505262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21334505262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25700202240).

21334505262 is an abundant number, since it is smaller than the sum of its proper divisors (30065899218).

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

21334505262 is a wasteful number, since it uses less digits than its factorization.

21334505262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36105.

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 21334505262 in words is "twenty-one billion, three hundred thirty-four million, five hundred five thousand, two hundred sixty-two".