42578346469 has 4 divisors (see below), whose sum is σ = 43117312960. Its totient is φ = 42039379980.

The previous prime is 42578346467. The next prime is 42578346479. The reversal of 42578346469 is 96464387524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42578346469 - 2¹ = 42578346467 is a prime.

It is a super-2 number, since 2×42578346469² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42578346467) 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, 269483127 + ... + 269483284.

It is an arithmetic number, because the mean of its divisors is an integer number (10779328240).

Almost surely, 2^42578346469 is an apocalyptic number.

It is an amenable number.

42578346469 is a deficient number, since it is larger than the sum of its proper divisors (538966491).

42578346469 is an equidigital number, since it uses as much as digits as its factorization.

42578346469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538966490.

The product of its digits is 34836480, while the sum is 58.

The spelling of 42578346469 in words is "forty-two billion, five hundred seventy-eight million, three hundred forty-six thousand, four hundred sixty-nine".