42607517591 has 2 divisors, whose sum is σ = 42607517592. Its totient is φ = 42607517590.

The previous prime is 42607517531. The next prime is 42607517621. The reversal of 42607517591 is 19571570624.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42607517591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42607517531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21303758795 + 21303758796.

It is an arithmetic number, because the mean of its divisors is an integer number (21303758796).

Almost surely, 2^42607517591 is an apocalyptic number.

42607517591 is a deficient number, since it is larger than the sum of its proper divisors (1).

42607517591 is an equidigital number, since it uses as much as digits as its factorization.

42607517591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529200, while the sum is 47.

The spelling of 42607517591 in words is "forty-two billion, six hundred seven million, five hundred seventeen thousand, five hundred ninety-one".