21863465123622 has 16 divisors (see below), whose sum is σ = 43728397803840. Its totient is φ = 7287577115112.

The previous prime is 21863465123603. The next prime is 21863465123629. The reversal of 21863465123622 is 22632156436812.

It is a super-2 number, since 2×21863465123622² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21863465123629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60954472 + ... + 61312107.

It is an arithmetic number, because the mean of its divisors is an integer number (2733024862740).

Almost surely, 2^{21863465123622} is an apocalyptic number.

21863465123622 is an abundant number, since it is smaller than the sum of its proper divisors (21864932680218).

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

21863465123622 is a wasteful number, since it uses less digits than its factorization.

21863465123622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122296387.

The product of its digits is 4976640, while the sum is 51.

The spelling of 21863465123622 in words is "twenty-one trillion, eight hundred sixty-three billion, four hundred sixty-five million, one hundred twenty-three thousand, six hundred twenty-two".