21412453116277 has 8 divisors (see below), whose sum is σ = 21658994236800. Its totient is φ = 21167219906784.

The previous prime is 21412453116233. The next prime is 21412453116287. The reversal of 21412453116277 is 77261135421412.

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 21412453116277 - 2¹¹ = 21412453114229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412453116287) 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, 326944827 + ... + 327010312.

It is an arithmetic number, because the mean of its divisors is an integer number (2707374279600).

Almost surely, 2^{21412453116277} is an apocalyptic number.

It is an amenable number.

21412453116277 is a deficient number, since it is larger than the sum of its proper divisors (246541120523).

21412453116277 is a wasteful number, since it uses less digits than its factorization.

21412453116277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653955515.

The product of its digits is 564480, while the sum is 46.

Adding to 21412453116277 its reverse (77261135421412), we get a palindrome (98673588537689).

The spelling of 21412453116277 in words is "twenty-one trillion, four hundred twelve billion, four hundred fifty-three million, one hundred sixteen thousand, two hundred seventy-seven".