21262314231462 has 16 divisors (see below), whose sum is σ = 42530918239152. Its totient is φ = 7086389781120.

The previous prime is 21262314231451. The next prime is 21262314231479. The reversal of 21262314231462 is 26413241326212.

It is a self number, because there is not a number n which added to its sum of digits gives 21262314231462.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262030063 + ... + 262111194.

It is an arithmetic number, because the mean of its divisors is an integer number (2658182389947).

Almost surely, 2^{21262314231462} is an apocalyptic number.

21262314231462 is an abundant number, since it is smaller than the sum of its proper divisors (21268604007690).

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

21262314231462 is a wasteful number, since it uses less digits than its factorization.

21262314231462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524148023.

The product of its digits is 165888, while the sum is 39.

Adding to 21262314231462 its reverse (26413241326212), we get a palindrome (47675555557674).

The spelling of 21262314231462 in words is "twenty-one trillion, two hundred sixty-two billion, three hundred fourteen million, two hundred thirty-one thousand, four hundred sixty-two".