42074720255 has 4 divisors (see below), whose sum is σ = 50489664312. Its totient is φ = 33659776200.

The previous prime is 42074720251. The next prime is 42074720257. The reversal of 42074720255 is 55202747024.

It is a happy number.

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

It is not a de Polignac number, because 42074720255 - 2² = 42074720251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42074720251) 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, 4207472021 + ... + 4207472030.

It is an arithmetic number, because the mean of its divisors is an integer number (12622416078).

Almost surely, 2^42074720255 is an apocalyptic number.

42074720255 is a deficient number, since it is larger than the sum of its proper divisors (8414944057).

42074720255 is an equidigital number, since it uses as much as digits as its factorization.

42074720255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8414944056.

The product of its (nonzero) digits is 156800, while the sum is 38.

The spelling of 42074720255 in words is "forty-two billion, seventy-four million, seven hundred twenty thousand, two hundred fifty-five".