42359308565 has 12 divisors (see below), whose sum is σ = 59130137196. Its totient is φ = 29046382848.

The previous prime is 42359308559. The next prime is 42359308571. The reversal of 42359308565 is 56580395324.

It is an interprime number because it is at equal distance from previous prime (42359308559) and next prime (42359308571).

It can be written as a sum of positive squares in 2 ways, for example, as 6005785009 + 36353523556 = 77497^2 + 190666^2 .

It is not a de Polignac number, because 42359308565 - 2¹⁴ = 42359292181 is a prime.

It is a super-2 number, since 2×42359308565² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 86447324 + ... + 86447813.

It is an arithmetic number, because the mean of its divisors is an integer number (4927511433).

Almost surely, 2^42359308565 is an apocalyptic number.

It is an amenable number.

42359308565 is a deficient number, since it is larger than the sum of its proper divisors (16770828631).

42359308565 is a wasteful number, since it uses less digits than its factorization.

42359308565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172895156 (or 172895149 counting only the distinct ones).

The product of its (nonzero) digits is 3888000, while the sum is 50.

The spelling of 42359308565 in words is "forty-two billion, three hundred fifty-nine million, three hundred eight thousand, five hundred sixty-five".