21467755435079 has 2 divisors, whose sum is σ = 21467755435080. Its totient is φ = 21467755435078.

The previous prime is 21467755435069. The next prime is 21467755435103. The reversal of 21467755435079 is 97053455776412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21467755435079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21467755435069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10733877717539 + 10733877717540.

It is an arithmetic number, because the mean of its divisors is an integer number (10733877717540).

Almost surely, 2^{21467755435079} is an apocalyptic number.

21467755435079 is a deficient number, since it is larger than the sum of its proper divisors (1).

21467755435079 is an equidigital number, since it uses as much as digits as its factorization.

21467755435079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 222264000, while the sum is 65.

The spelling of 21467755435079 in words is "twenty-one trillion, four hundred sixty-seven billion, seven hundred fifty-five million, four hundred thirty-five thousand, seventy-nine".