1974872585 has 8 divisors (see below), whose sum is σ = 2708396736. Its totient is φ = 1354198320.

The previous prime is 1974872569. The next prime is 1974872593. The reversal of 1974872585 is 5852784791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1974872585 - 2⁴ = 1974872569 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1974872585.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28212431 + ... + 28212500.

It is an arithmetic number, because the mean of its divisors is an integer number (338549592).

Almost surely, 2^1974872585 is an apocalyptic number.

It is an amenable number.

1974872585 is a deficient number, since it is larger than the sum of its proper divisors (733524151).

1974872585 is an equidigital number, since it uses as much as digits as its factorization.

1974872585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56424943.

The product of its digits is 5644800, while the sum is 56.

The square root of 1974872585 is about 44439.5385327076. The cubic root of 1974872585 is about 1254.6223706820.

The spelling of 1974872585 in words is "one billion, nine hundred seventy-four million, eight hundred seventy-two thousand, five hundred eighty-five".