21365467124351 has 8 divisors (see below), whose sum is σ = 24418034970144. Its totient is φ = 18312988842720.

The previous prime is 21365467124321. The next prime is 21365467124363. The reversal of 21365467124351 is 15342176456312.

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 21365467124351 - 2²² = 21365462930047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21365467124351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21365467124321) 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, 21879080 + ... + 22834733.

It is an arithmetic number, because the mean of its divisors is an integer number (3052254371268).

Almost surely, 2^{21365467124351} is an apocalyptic number.

21365467124351 is a deficient number, since it is larger than the sum of its proper divisors (3052567845793).

21365467124351 is an equidigital number, since it uses as much as digits as its factorization.

21365467124351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44782081.

The product of its digits is 3628800, while the sum is 50.

The spelling of 21365467124351 in words is "twenty-one trillion, three hundred sixty-five billion, four hundred sixty-seven million, one hundred twenty-four thousand, three hundred fifty-one".