5639687804 has 6 divisors (see below), whose sum is σ = 9869453664. Its totient is φ = 2819843900.

The previous prime is 5639687789. The next prime is 5639687843. The reversal of 5639687804 is 4087869365.

It is a self number, because there is not a number n which added to its sum of digits gives 5639687804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704960972 + ... + 704960979.

It is an arithmetic number, because the mean of its divisors is an integer number (1644908944).

Almost surely, 2^5639687804 is an apocalyptic number.

It is an amenable number.

5639687804 is a deficient number, since it is larger than the sum of its proper divisors (4229765860).

5639687804 is a wasteful number, since it uses less digits than its factorization.

5639687804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409921955 (or 1409921953 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 56.

The square root of 5639687804 is about 75097.8548561808. The cubic root of 5639687804 is about 1779.9932461975.

The spelling of 5639687804 in words is "five billion, six hundred thirty-nine million, six hundred eighty-seven thousand, eight hundred four".