1579578478 has 8 divisors (see below), whose sum is σ = 2397914568. Its totient is φ = 780273624.

The previous prime is 1579578449. The next prime is 1579578479. The reversal of 1579578478 is 8748759751.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1579578479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4757601 + ... + 4757932.

It is an arithmetic number, because the mean of its divisors is an integer number (299739321).

Almost surely, 2^1579578478 is an apocalyptic number.

1579578478 is a deficient number, since it is larger than the sum of its proper divisors (818336090).

1579578478 is an equidigital number, since it uses as much as digits as its factorization.

1579578478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9515618.

The product of its digits is 19756800, while the sum is 61.

The square root of 1579578478 is about 39743.9112066238. The cubic root of 1579578478 is about 1164.6096988705.

The spelling of 1579578478 in words is "one billion, five hundred seventy-nine million, five hundred seventy-eight thousand, four hundred seventy-eight".