1585120408419 has 4 divisors (see below), whose sum is σ = 2113493877896. Its totient is φ = 1056746938944.

The previous prime is 1585120408387. The next prime is 1585120408451. The reversal of 1585120408419 is 9148040215851.

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

It is an interprime number because it is at equal distance from previous prime (1585120408387) and next prime (1585120408451).

It is not a de Polignac number, because 1585120408419 - 2⁵ = 1585120408387 is a prime.

It is a super-2 number, since 2×1585120408419² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1585120408489) 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, 264186734734 + ... + 264186734739.

It is an arithmetic number, because the mean of its divisors is an integer number (528373469474).

Almost surely, 2^{1585120408419} is an apocalyptic number.

1585120408419 is a deficient number, since it is larger than the sum of its proper divisors (528373469477).

1585120408419 is an equidigital number, since it uses as much as digits as its factorization.

1585120408419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528373469476.

The product of its (nonzero) digits is 460800, while the sum is 48.

The spelling of 1585120408419 in words is "one trillion, five hundred eighty-five billion, one hundred twenty million, four hundred eight thousand, four hundred nineteen".