42721524367 has 2 divisors, whose sum is σ = 42721524368. Its totient is φ = 42721524366.

The previous prime is 42721524361. The next prime is 42721524397. The reversal of 42721524367 is 76342512724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42721524367 - 2¹⁹ = 42721000079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42721524361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21360762183 + 21360762184.

It is an arithmetic number, because the mean of its divisors is an integer number (21360762184).

Almost surely, 2^42721524367 is an apocalyptic number.

42721524367 is a deficient number, since it is larger than the sum of its proper divisors (1).

42721524367 is an equidigital number, since it uses as much as digits as its factorization.

42721524367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 43.

The spelling of 42721524367 in words is "forty-two billion, seven hundred twenty-one million, five hundred twenty-four thousand, three hundred sixty-seven".