5258947864 has 8 divisors (see below), whose sum is σ = 9860527260. Its totient is φ = 2629473928.

The previous prime is 5258947847. The next prime is 5258947871. The reversal of 5258947864 is 4687498525.

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

It is a junction number, because it is equal to n+sod(n) for n = 5258947799 and 5258947808.

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, 328684234 + ... + 328684249.

Almost surely, 2^5258947864 is an apocalyptic number.

It is an amenable number.

5258947864 is a deficient number, since it is larger than the sum of its proper divisors (4601579396).

5258947864 is a wasteful number, since it uses less digits than its factorization.

5258947864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657368489 (or 657368485 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 58.

The square root of 5258947864 is about 72518.6035717732. The cubic root of 5258947864 is about 1739.0001592749. Note that the first 3 decimals are identical.

The spelling of 5258947864 in words is "five billion, two hundred fifty-eight million, nine hundred forty-seven thousand, eight hundred sixty-four".