21234546462 has 8 divisors (see below), whose sum is σ = 42469092936. Its totient is φ = 7078182152.

The previous prime is 21234546413. The next prime is 21234546469. The reversal of 21234546462 is 26464543212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

21234546462 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21234546462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21234546469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1769545533 + ... + 1769545544.

It is an arithmetic number, because the mean of its divisors is an integer number (5308636617).

Almost surely, 2^21234546462 is an apocalyptic number.

21234546462 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21234546462 is a wasteful number, since it uses less digits than its factorization.

21234546462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539091082.

The product of its digits is 276480, while the sum is 39.

The spelling of 21234546462 in words is "twenty-one billion, two hundred thirty-four million, five hundred forty-six thousand, four hundred sixty-two".