2643550004 has 6 divisors (see below), whose sum is σ = 4626212514. Its totient is φ = 1321775000.

The previous prime is 2643549983. The next prime is 2643550027. The reversal of 2643550004 is 4000553462.

It can be written as a sum of positive squares in only one way, i.e., 2641754404 + 1795600 = 51398^2 + 1340^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330443747 + ... + 330443754.

It is an arithmetic number, because the mean of its divisors is an integer number (771035419).

Almost surely, 2^2643550004 is an apocalyptic number.

It is an amenable number.

2643550004 is a deficient number, since it is larger than the sum of its proper divisors (1982662510).

2643550004 is a wasteful number, since it uses less digits than its factorization.

2643550004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660887505 (or 660887503 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2643550004 is about 51415.4646385696. The cubic root of 2643550004 is about 1382.7038642410.

The spelling of 2643550004 in words is "two billion, six hundred forty-three million, five hundred fifty thousand, four".