21364767054151 has 2 divisors, whose sum is σ = 21364767054152. Its totient is φ = 21364767054150.

The previous prime is 21364767054149. The next prime is 21364767054199. The reversal of 21364767054151 is 15145076746312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21364767054151 - 2¹ = 21364767054149 is a prime.

Together with 21364767054149, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21364767004151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10682383527075 + 10682383527076.

It is an arithmetic number, because the mean of its divisors is an integer number (10682383527076).

Almost surely, 2^{21364767054151} is an apocalyptic number.

21364767054151 is a deficient number, since it is larger than the sum of its proper divisors (1).

21364767054151 is an equidigital number, since it uses as much as digits as its factorization.

21364767054151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 21364767054151 in words is "twenty-one trillion, three hundred sixty-four billion, seven hundred sixty-seven million, fifty-four thousand, one hundred fifty-one".