21467153706679 has 2 divisors, whose sum is σ = 21467153706680. Its totient is φ = 21467153706678.

The previous prime is 21467153706553. The next prime is 21467153706703. The reversal of 21467153706679 is 97660735176412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21467153706679 - 2²⁷ = 21467019488951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21467153706679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21467153700679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10733576853339 + 10733576853340.

It is an arithmetic number, because the mean of its divisors is an integer number (10733576853340).

Almost surely, 2^{21467153706679} is an apocalyptic number.

21467153706679 is a deficient number, since it is larger than the sum of its proper divisors (1).

21467153706679 is an equidigital number, since it uses as much as digits as its factorization.

21467153706679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80015040, while the sum is 64.

The spelling of 21467153706679 in words is "twenty-one trillion, four hundred sixty-seven billion, one hundred fifty-three million, seven hundred six thousand, six hundred seventy-nine".