21073560467 has 2 divisors, whose sum is σ = 21073560468. Its totient is φ = 21073560466.

The previous prime is 21073560377. The next prime is 21073560499. The reversal of 21073560467 is 76406537012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21073560467 is a prime.

It is not a weakly prime, because it can be changed into another prime (21073562467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10536780233 + 10536780234.

It is an arithmetic number, because the mean of its divisors is an integer number (10536780234).

Almost surely, 2^21073560467 is an apocalyptic number.

21073560467 is a deficient number, since it is larger than the sum of its proper divisors (1).

21073560467 is an equidigital number, since it uses as much as digits as its factorization.

21073560467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 21073560467 in words is "twenty-one billion, seventy-three million, five hundred sixty thousand, four hundred sixty-seven".