2643472538 has 32 divisors (see below), whose sum is σ = 4606156800. Its totient is φ = 1114345584.

The previous prime is 2643472529. The next prime is 2643472543. The reversal of 2643472538 is 8352743462.

It is a super-2 number, since 2×2643472538² = 13975894118320322888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785303 + ... + 788661.

It is an arithmetic number, because the mean of its divisors is an integer number (143942400).

Almost surely, 2^2643472538 is an apocalyptic number.

2643472538 is a deficient number, since it is larger than the sum of its proper divisors (1962684262).

2643472538 is a wasteful number, since it uses less digits than its factorization.

2643472538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274.

The product of its digits is 967680, while the sum is 44.

The square root of 2643472538 is about 51414.7112993937. The cubic root of 2643472538 is about 1382.6903579605.

The spelling of 2643472538 in words is "two billion, six hundred forty-three million, four hundred seventy-two thousand, five hundred thirty-eight".