5218398648 has 32 divisors (see below), whose sum is σ = 14495552400. Its totient is φ = 1739466144.

The previous prime is 5218398611. The next prime is 5218398701. The reversal of 5218398648 is 8468938125.

5218398648 is a `hidden beast` number, since 521 + 8 + 39 + 86 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 5218398594 and 5218398603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12079411 + ... + 12079842.

Almost surely, 2^5218398648 is an apocalyptic number.

It is an amenable number.

5218398648 is an abundant number, since it is smaller than the sum of its proper divisors (9277153752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5218398648 is a wasteful number, since it uses less digits than its factorization.

5218398648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24159268 (or 24159258 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The square root of 5218398648 is about 72238.4845355992. The cubic root of 5218398648 is about 1734.5190912456.

The spelling of 5218398648 in words is "five billion, two hundred eighteen million, three hundred ninety-eight thousand, six hundred forty-eight".