21336342377 has 8 divisors (see below), whose sum is σ = 24388224000. Its totient is φ = 18285418944.

The previous prime is 21336342373. The next prime is 21336342389. The reversal of 21336342377 is 77324363312.

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

It is a cyclic number.

It is not a de Polignac number, because 21336342377 - 2² = 21336342373 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21336342373) 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, 191177 + ... + 281462.

It is an arithmetic number, because the mean of its divisors is an integer number (3048528000).

Almost surely, 2^21336342377 is an apocalyptic number.

It is an amenable number.

21336342377 is a deficient number, since it is larger than the sum of its proper divisors (3051881623).

21336342377 is an equidigital number, since it uses as much as digits as its factorization.

21336342377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479095.

The product of its digits is 381024, while the sum is 41.

The spelling of 21336342377 in words is "twenty-one billion, three hundred thirty-six million, three hundred forty-two thousand, three hundred seventy-seven".