42101009597 has 4 divisors (see below), whose sum is σ = 42101734140. Its totient is φ = 42100285056.

The previous prime is 42101009549. The next prime is 42101009611. The reversal of 42101009597 is 79590010124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5582181796 + 36518827801 = 74714^2 + 191099^2 .

It is a cyclic number.

It is not a de Polignac number, because 42101009597 - 2²⁸ = 41832574141 is a prime.

It is a super-2 number, since 2×42101009597² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42101009597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42101009297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266708 + ... + 394125.

It is an arithmetic number, because the mean of its divisors is an integer number (10525433535).

Almost surely, 2^42101009597 is an apocalyptic number.

It is an amenable number.

42101009597 is a deficient number, since it is larger than the sum of its proper divisors (724543).

42101009597 is an equidigital number, since it uses as much as digits as its factorization.

42101009597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724542.

The product of its (nonzero) digits is 22680, while the sum is 38.

The spelling of 42101009597 in words is "forty-two billion, one hundred one million, nine thousand, five hundred ninety-seven".