2578361163 has 8 divisors (see below), whose sum is σ = 3928931328. Its totient is φ = 1473349224.

The previous prime is 2578361147. The next prime is 2578361273. The reversal of 2578361163 is 3611638752.

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

It is not a de Polignac number, because 2578361163 - 2⁴ = 2578361147 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2578363163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61389531 + ... + 61389572.

It is an arithmetic number, because the mean of its divisors is an integer number (491116416).

Almost surely, 2^2578361163 is an apocalyptic number.

2578361163 is a deficient number, since it is larger than the sum of its proper divisors (1350570165).

2578361163 is a wasteful number, since it uses less digits than its factorization.

2578361163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122779113.

The product of its digits is 181440, while the sum is 42.

The square root of 2578361163 is about 50777.5655481828. The cubic root of 2578361163 is about 1371.2435053832.

The spelling of 2578361163 in words is "two billion, five hundred seventy-eight million, three hundred sixty-one thousand, one hundred sixty-three".