21367112076417 has 4 divisors (see below), whose sum is σ = 28489482768560. Its totient is φ = 14244741384276.

The previous prime is 21367112076341. The next prime is 21367112076487. The reversal of 21367112076417 is 71467021176312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21367112076417 - 2⁸ = 21367112076161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21367112076487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3561185346067 + ... + 3561185346072.

It is an arithmetic number, because the mean of its divisors is an integer number (7122370692140).

Almost surely, 2^{21367112076417} is an apocalyptic number.

It is an amenable number.

21367112076417 is a deficient number, since it is larger than the sum of its proper divisors (7122370692143).

21367112076417 is an equidigital number, since it uses as much as digits as its factorization.

21367112076417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122370692142.

The product of its (nonzero) digits is 592704, while the sum is 48.

The spelling of 21367112076417 in words is "twenty-one trillion, three hundred sixty-seven billion, one hundred twelve million, seventy-six thousand, four hundred seventeen".