21361411362 has 32 divisors (see below), whose sum is σ = 43218584640. Its totient is φ = 7037902080.

The previous prime is 21361411361. The next prime is 21361411363. The reversal of 21361411362 is 26311416312.

It is an interprime number because it is at equal distance from previous prime (21361411361) and next prime (21361411363).

It is not an unprimeable number, because it can be changed into a prime (21361411361) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1955937 + ... + 1966827.

It is an arithmetic number, because the mean of its divisors is an integer number (1350580770).

Almost surely, 2^21361411362 is an apocalyptic number.

21361411362 is an abundant number, since it is smaller than the sum of its proper divisors (21857173278).

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

21361411362 is a wasteful number, since it uses less digits than its factorization.

21361411362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14658.

The product of its digits is 5184, while the sum is 30.

Adding to 21361411362 its reverse (26311416312), we get a palindrome (47672827674).

The spelling of 21361411362 in words is "twenty-one billion, three hundred sixty-one million, four hundred eleven thousand, three hundred sixty-two".