21415339607 has 2 divisors, whose sum is σ = 21415339608. Its totient is φ = 21415339606.

The previous prime is 21415339553. The next prime is 21415339619. The reversal of 21415339607 is 70693351412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21415339607 - 2¹² = 21415335511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21415339697) 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 as a sum of consecutive naturals, namely, 10707669803 + 10707669804.

It is an arithmetic number, because the mean of its divisors is an integer number (10707669804).

Almost surely, 2^21415339607 is an apocalyptic number.

21415339607 is a deficient number, since it is larger than the sum of its proper divisors (1).

21415339607 is an equidigital number, since it uses as much as digits as its factorization.

21415339607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 21415339607 in words is "twenty-one billion, four hundred fifteen million, three hundred thirty-nine thousand, six hundred seven".