2638463144 has 16 divisors (see below), whose sum is σ = 5062168320. Its totient is φ = 1288551600.

The previous prime is 2638463129. The next prime is 2638463159. The reversal of 2638463144 is 4413648362.

It is an interprime number because it is at equal distance from previous prime (2638463129) and next prime (2638463159).

It is a super-2 number, since 2×2638463144² = 13922975524492729472, 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 3 ways as a sum of consecutive naturals, for example, 3834632 + ... + 3835319.

It is an arithmetic number, because the mean of its divisors is an integer number (316385520).

Almost surely, 2^2638463144 is an apocalyptic number.

It is an amenable number.

2638463144 is a deficient number, since it is larger than the sum of its proper divisors (2423705176).

2638463144 is a wasteful number, since it uses less digits than its factorization.

2638463144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7670000 (or 7669996 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

The square root of 2638463144 is about 51365.9726278010. The cubic root of 2638463144 is about 1381.8164039084.

The spelling of 2638463144 in words is "two billion, six hundred thirty-eight million, four hundred sixty-three thousand, one hundred forty-four".