21462143362446 has 16 divisors (see below), whose sum is σ = 43087496943744. Its totient is φ = 7126846084344.

The previous prime is 21462143362391. The next prime is 21462143362493. The reversal of 21462143362446 is 64426334126412.

It is a junction number, because it is equal to n+sod(n) for n = 21462143362395 and 21462143362404.

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, 6800424076 + ... + 6800427231.

It is an arithmetic number, because the mean of its divisors is an integer number (2692968558984).

Almost surely, 2^{21462143362446} is an apocalyptic number.

21462143362446 is an abundant number, since it is smaller than the sum of its proper divisors (21625353581298).

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

21462143362446 is a wasteful number, since it uses less digits than its factorization.

21462143362446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13600851575.

The product of its digits is 3981312, while the sum is 48.

Adding to 21462143362446 its reverse (64426334126412), we get a palindrome (85888477488858).

The spelling of 21462143362446 in words is "twenty-one trillion, four hundred sixty-two billion, one hundred forty-three million, three hundred sixty-two thousand, four hundred forty-six".