42745908115 has 4 divisors (see below), whose sum is σ = 51295089744. Its totient is φ = 34196726488.

The previous prime is 42745908109. The next prime is 42745908119. The reversal of 42745908115 is 51180954724.

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

It is a cyclic number.

It is not a de Polignac number, because 42745908115 - 2²³ = 42737519507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42745908119) 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, 4274590807 + ... + 4274590816.

It is an arithmetic number, because the mean of its divisors is an integer number (12823772436).

Almost surely, 2^42745908115 is an apocalyptic number.

42745908115 is a deficient number, since it is larger than the sum of its proper divisors (8549181629).

42745908115 is an equidigital number, since it uses as much as digits as its factorization.

42745908115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8549181628.

The product of its (nonzero) digits is 403200, while the sum is 46.

The spelling of 42745908115 in words is "forty-two billion, seven hundred forty-five million, nine hundred eight thousand, one hundred fifteen".