21344320677174 has 16 divisors (see below), whose sum is σ = 46569426932160. Its totient is φ = 6467975962760.

The previous prime is 21344320677131. The next prime is 21344320677187. The reversal of 21344320677174 is 47177602344312.

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, 161699399004 + ... + 161699399135.

It is an arithmetic number, because the mean of its divisors is an integer number (2910589183260).

Almost surely, 2^{21344320677174} is an apocalyptic number.

21344320677174 is an abundant number, since it is smaller than the sum of its proper divisors (25225106254986).

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

21344320677174 is a wasteful number, since it uses less digits than its factorization.

21344320677174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323398798155.

The product of its (nonzero) digits is 4741632, while the sum is 51.

The spelling of 21344320677174 in words is "twenty-one trillion, three hundred forty-four billion, three hundred twenty million, six hundred seventy-seven thousand, one hundred seventy-four".