21342065262 has 32 divisors (see below), whose sum is σ = 48855727104. Its totient is φ = 6088500000.

The previous prime is 21342065237. The next prime is 21342065333. The reversal of 21342065262 is 26256024312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356614 + ... + 412137.

It is an arithmetic number, because the mean of its divisors is an integer number (1526741472).

Almost surely, 2^21342065262 is an apocalyptic number.

21342065262 is an abundant number, since it is smaller than the sum of its proper divisors (27513661842).

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

21342065262 is a wasteful number, since it uses less digits than its factorization.

21342065262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769424.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 21342065262 its reverse (26256024312), we get a palindrome (47598089574).

The spelling of 21342065262 in words is "twenty-one billion, three hundred forty-two million, sixty-five thousand, two hundred sixty-two".