21374335577336 has 16 divisors (see below), whose sum is σ = 45802147665840. Its totient is φ = 9160429533120.

The previous prime is 21374335577327. The next prime is 21374335577341. The reversal of 21374335577336 is 63377553347312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190842281885 + ... + 190842281996.

It is an arithmetic number, because the mean of its divisors is an integer number (2862634229115).

Almost surely, 2^{21374335577336} is an apocalyptic number.

It is an amenable number.

21374335577336 is an abundant number, since it is smaller than the sum of its proper divisors (24427812088504).

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

21374335577336 is a wasteful number, since it uses less digits than its factorization.

21374335577336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381684563894 (or 381684563890 counting only the distinct ones).

The product of its digits is 100018800, while the sum is 59.

The spelling of 21374335577336 in words is "twenty-one trillion, three hundred seventy-four billion, three hundred thirty-five million, five hundred seventy-seven thousand, three hundred thirty-six".