2638450876 has 48 divisors (see below), whose sum is σ = 4788655200. Its totient is φ = 1271379200.

The previous prime is 2638450861. The next prime is 2638450877. The reversal of 2638450876 is 6780548362.

It is a super-2 number, since 2×2638450876² = 13922846050130334752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638450877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3189975 + ... + 3190801.

It is an arithmetic number, because the mean of its divisors is an integer number (99763650).

Almost surely, 2^2638450876 is an apocalyptic number.

It is an amenable number.

2638450876 is a deficient number, since it is larger than the sum of its proper divisors (2150204324).

2638450876 is a wasteful number, since it uses less digits than its factorization.

2638450876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 2638450876 is about 51365.8532100850. The cubic root of 2638450876 is about 1381.8142622386.

The spelling of 2638450876 in words is "two billion, six hundred thirty-eight million, four hundred fifty thousand, eight hundred seventy-six".