5121043864 has 8 divisors (see below), whose sum is σ = 9601957260. Its totient is φ = 2560521928.

The previous prime is 5121043843. The next prime is 5121043877. The reversal of 5121043864 is 4683401215.

It is a tau number, because it is divible by the number of its divisors (8).

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, 320065234 + ... + 320065249.

Almost surely, 2^5121043864 is an apocalyptic number.

It is an amenable number.

5121043864 is a deficient number, since it is larger than the sum of its proper divisors (4480913396).

5121043864 is a wasteful number, since it uses less digits than its factorization.

5121043864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640130489 (or 640130485 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 5121043864 is about 71561.4691296930. The cubic root of 5121043864 is about 1723.6648761918.

The spelling of 5121043864 in words is "five billion, one hundred twenty-one million, forty-three thousand, eight hundred sixty-four".