42045777194 has 8 divisors (see below), whose sum is σ = 65243447460. Its totient is φ = 20297961376.

The previous prime is 42045777181. The next prime is 42045777197. The reversal of 42045777194 is 49177754024.

42045777194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42006552025 + 39225169 = 204955^2 + 6263^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42045777197) 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, 362463539 + ... + 362463654.

Almost surely, 2^42045777194 is an apocalyptic number.

42045777194 is a deficient number, since it is larger than the sum of its proper divisors (23197670266).

42045777194 is a wasteful number, since it uses less digits than its factorization.

42045777194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724927224.

The product of its (nonzero) digits is 1975680, while the sum is 50.

The spelling of 42045777194 in words is "forty-two billion, forty-five million, seven hundred seventy-seven thousand, one hundred ninety-four".