2195878494 has 32 divisors (see below), whose sum is σ = 4596643584. Its totient is φ = 698005440.

The previous prime is 2195878483. The next prime is 2195878501. The reversal of 2195878494 is 4948785912.

It is a super-3 number, since 3×2195878494³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21642 + ... + 69714.

It is an arithmetic number, because the mean of its divisors is an integer number (143645112).

Almost surely, 2^2195878494 is an apocalyptic number.

2195878494 is an abundant number, since it is smaller than the sum of its proper divisors (2400765090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2195878494 is a wasteful number, since it uses less digits than its factorization.

2195878494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48432.

The product of its digits is 5806080, while the sum is 57.

The square root of 2195878494 is about 46860.2016000785. The cubic root of 2195878494 is about 1299.7787580106.

The spelling of 2195878494 in words is "two billion, one hundred ninety-five million, eight hundred seventy-eight thousand, four hundred ninety-four".