42275887851 has 32 divisors (see below), whose sum is σ = 59826378240. Its totient is φ = 26479643904.

The previous prime is 42275887807. The next prime is 42275887853. The reversal of 42275887851 is 15878857224.

It is a happy number.

It is not a de Polignac number, because 42275887851 - 2¹¹ = 42275885803 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 42275887791 and 42275887800.

It is not an unprimeable number, because it can be changed into a prime (42275887853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10719786 + ... + 10723728.

It is an arithmetic number, because the mean of its divisors is an integer number (1869574320).

Almost surely, 2^42275887851 is an apocalyptic number.

42275887851 is a deficient number, since it is larger than the sum of its proper divisors (17550490389).

42275887851 is a wasteful number, since it uses less digits than its factorization.

42275887851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475.

The product of its digits is 10035200, while the sum is 57.

The spelling of 42275887851 in words is "forty-two billion, two hundred seventy-five million, eight hundred eighty-seven thousand, eight hundred fifty-one".