21342822907574 has 32 divisors (see below), whose sum is σ = 38090419836480. Its totient is φ = 8775261226368.

The previous prime is 21342822907559. The next prime is 21342822907591. The reversal of 21342822907574 is 47570922824312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 167351957 + ... + 167479440.

It is an arithmetic number, because the mean of its divisors is an integer number (1190325619890).

Almost surely, 2^{21342822907574} is an apocalyptic number.

21342822907574 is a deficient number, since it is larger than the sum of its proper divisors (16747596928906).

21342822907574 is a wasteful number, since it uses less digits than its factorization.

21342822907574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334831592.

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 21342822907574 in words is "twenty-one trillion, three hundred forty-two billion, eight hundred twenty-two million, nine hundred seven thousand, five hundred seventy-four".