21354727216335 has 32 divisors (see below), whose sum is σ = 34209615760320. Its totient is φ = 11375172016128.

The previous prime is 21354727216309. The next prime is 21354727216363. The reversal of 21354727216335 is 53361272745312.

It is not a de Polignac number, because 21354727216335 - 2¹⁴ = 21354727199951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 283870647 + ... + 283945863.

It is an arithmetic number, because the mean of its divisors is an integer number (1069050492510).

Almost surely, 2^{21354727216335} is an apocalyptic number.

21354727216335 is a deficient number, since it is larger than the sum of its proper divisors (12854888543985).

21354727216335 is a wasteful number, since it uses less digits than its factorization.

21354727216335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98267.

The product of its digits is 6350400, while the sum is 51.

The spelling of 21354727216335 in words is "twenty-one trillion, three hundred fifty-four billion, seven hundred twenty-seven million, two hundred sixteen thousand, three hundred thirty-five".