21467341706351 has 4 divisors (see below), whose sum is σ = 21467735375400. Its totient is φ = 21466948037304.

The previous prime is 21467341706347. The next prime is 21467341706359. The reversal of 21467341706351 is 15360714376412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21467341706351 - 2² = 21467341706347 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 21467341706351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21467341706359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196752716 + ... + 196861793.

It is an arithmetic number, because the mean of its divisors is an integer number (5366933843850).

Almost surely, 2^{21467341706351} is an apocalyptic number.

21467341706351 is a deficient number, since it is larger than the sum of its proper divisors (393669049).

21467341706351 is an equidigital number, since it uses as much as digits as its factorization.

21467341706351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393669048.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 21467341706351 in words is "twenty-one trillion, four hundred sixty-seven billion, three hundred forty-one million, seven hundred six thousand, three hundred fifty-one".