42180528019 has 4 divisors (see below), whose sum is σ = 48206317744. Its totient is φ = 36154738296.

The previous prime is 42180527969. The next prime is 42180528031. The reversal of 42180528019 is 91082508124.

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 42180528019 - 2¹³ = 42180519827 is a prime.

It is a super-2 number, since 2×42180528019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42180528119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3012894852 + ... + 3012894865.

It is an arithmetic number, because the mean of its divisors is an integer number (12051579436).

Almost surely, 2^42180528019 is an apocalyptic number.

42180528019 is a deficient number, since it is larger than the sum of its proper divisors (6025789725).

42180528019 is an equidigital number, since it uses as much as digits as its factorization.

42180528019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6025789724.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 42180528019 in words is "forty-two billion, one hundred eighty million, five hundred twenty-eight thousand, nineteen".