42195013945 has 8 divisors (see below), whose sum is σ = 57867447744. Its totient is φ = 28933723824.

The previous prime is 42195013943. The next prime is 42195013961. The reversal of 42195013945 is 54931059124.

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 42195013945 - 2¹ = 42195013943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42195013943) 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, 602785879 + ... + 602785948.

It is an arithmetic number, because the mean of its divisors is an integer number (7233430968).

Almost surely, 2^42195013945 is an apocalyptic number.

It is an amenable number.

42195013945 is a deficient number, since it is larger than the sum of its proper divisors (15672433799).

42195013945 is a wasteful number, since it uses less digits than its factorization.

42195013945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205571839.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 42195013945 in words is "forty-two billion, one hundred ninety-five million, thirteen thousand, nine hundred forty-five".