21376342574 has 8 divisors (see below), whose sum is σ = 32065920360. Its totient is φ = 10687702456.

The previous prime is 21376342571. The next prime is 21376342613. The reversal of 21376342574 is 47524367312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21376342571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174344 + ... + 270459.

It is an arithmetic number, because the mean of its divisors is an integer number (4008240045).

Almost surely, 2^21376342574 is an apocalyptic number.

21376342574 is a deficient number, since it is larger than the sum of its proper divisors (10689577786).

21376342574 is a wasteful number, since it uses less digits than its factorization.

21376342574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468834.

The product of its digits is 846720, while the sum is 44.

The spelling of 21376342574 in words is "twenty-one billion, three hundred seventy-six million, three hundred forty-two thousand, five hundred seventy-four".