5248779648 has 384 divisors, whose sum is σ = 17518744800. Its totient is φ = 1383137280.

The previous prime is 5248779637. The next prime is 5248779667. The reversal of 5248779648 is 8469778425.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

Its product of digits (27095040) is a multiple of the sum of its prime factors (378).

It is a junction number, because it is equal to n+sod(n) for n = 5248779591 and 5248779600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19512058 + ... + 19512326.

Almost surely, 2^5248779648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5248779648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8759372400).

5248779648 is an abundant number, since it is smaller than the sum of its proper divisors (12269965152).

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

5248779648 is a wasteful number, since it uses less digits than its factorization.

5248779648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 359 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 60.

The square root of 5248779648 is about 72448.4620126611. The cubic root of 5248779648 is about 1737.8786461007.

The spelling of 5248779648 in words is "five billion, two hundred forty-eight million, seven hundred seventy-nine thousand, six hundred forty-eight".