2472643378 has 16 divisors (see below), whose sum is σ = 3738735000. Its totient is φ = 1226420352.

The previous prime is 2472643361. The next prime is 2472643403. The reversal of 2472643378 is 8733462742.

It can be written as a sum of positive squares in 4 ways, for example, as 2365168689 + 107474689 = 48633^2 + 10367^2 .

It is a super-2 number, since 2×2472643378² = 12227930549534501768, which contains 22 as substring.

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, 242038 + ... + 252046.

Almost surely, 2^2472643378 is an apocalyptic number.

2472643378 is a deficient number, since it is larger than the sum of its proper divisors (1266091622).

2472643378 is a wasteful number, since it uses less digits than its factorization.

2472643378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10989.

The product of its digits is 1354752, while the sum is 46.

The square root of 2472643378 is about 49725.6812723566. The cubic root of 2472643378 is about 1352.2401541256.

The spelling of 2472643378 in words is "two billion, four hundred seventy-two million, six hundred forty-three thousand, three hundred seventy-eight".