42745530617 has 8 divisors (see below), whose sum is σ = 43659443520. Its totient is φ = 41840280720.

The previous prime is 42745530599. The next prime is 42745530631. The reversal of 42745530617 is 71603554724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42745530617 - 2³⁰ = 41671788793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42745530637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2155778 + ... + 2175515.

It is an arithmetic number, because the mean of its divisors is an integer number (5457430440).

Almost surely, 2^42745530617 is an apocalyptic number.

It is an amenable number.

42745530617 is a deficient number, since it is larger than the sum of its proper divisors (913912903).

42745530617 is a wasteful number, since it uses less digits than its factorization.

42745530617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4331503.

The product of its (nonzero) digits is 705600, while the sum is 44.

The spelling of 42745530617 in words is "forty-two billion, seven hundred forty-five million, five hundred thirty thousand, six hundred seventeen".