21422316462 has 32 divisors (see below), whose sum is σ = 44099090592. Its totient is φ = 6932542464.

The previous prime is 21422316407. The next prime is 21422316463. The reversal of 21422316462 is 26461322412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21422316463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4123 + ... + 207030.

It is an arithmetic number, because the mean of its divisors is an integer number (1378096581).

Almost surely, 2^21422316462 is an apocalyptic number.

21422316462 is an abundant number, since it is smaller than the sum of its proper divisors (22676774130).

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

21422316462 is a wasteful number, since it uses less digits than its factorization.

21422316462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211652.

The product of its digits is 27648, while the sum is 33.

Adding to 21422316462 its reverse (26461322412), we get a palindrome (47883638874).

The spelling of 21422316462 in words is "twenty-one billion, four hundred twenty-two million, three hundred sixteen thousand, four hundred sixty-two".