42025903919 has 4 divisors (see below), whose sum is σ = 42032479944. Its totient is φ = 42019327896.

The previous prime is 42025903897. The next prime is 42025903921. The reversal of 42025903919 is 91930952024.

It is a happy number.

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 42025903919 - 2¹² = 42025899823 is a prime.

It is a super-2 number, since 2×42025903919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42025903919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42025903219) 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, 3278417 + ... + 3291210.

It is an arithmetic number, because the mean of its divisors is an integer number (10508119986).

Almost surely, 2^42025903919 is an apocalyptic number.

42025903919 is a deficient number, since it is larger than the sum of its proper divisors (6576025).

42025903919 is an equidigital number, since it uses as much as digits as its factorization.

42025903919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576024.

The product of its (nonzero) digits is 174960, while the sum is 44.

The spelling of 42025903919 in words is "forty-two billion, twenty-five million, nine hundred three thousand, nine hundred nineteen".