21442023402054 has 16 divisors (see below), whose sum is σ = 42884130188592. Its totient is φ = 7147327236608.

The previous prime is 21442023402047. The next prime is 21442023402227. The reversal of 21442023402054 is 45020432024412.

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, 161182 + ... + 6550574.

It is an arithmetic number, because the mean of its divisors is an integer number (2680258136787).

Almost surely, 2^{21442023402054} is an apocalyptic number.

21442023402054 is an abundant number, since it is smaller than the sum of its proper divisors (21442106786538).

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

21442023402054 is a wasteful number, since it uses less digits than its factorization.

21442023402054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6948711.

The product of its (nonzero) digits is 61440, while the sum is 33.

Adding to 21442023402054 its reverse (45020432024412), we get a palindrome (66462455426466).

The spelling of 21442023402054 in words is "twenty-one trillion, four hundred forty-two billion, twenty-three million, four hundred two thousand, fifty-four".