5264988660 has 144 divisors (see below), whose sum is σ = 16710273216. Its totient is φ = 1391427072.

The previous prime is 5264988647. The next prime is 5264988661. The reversal of 5264988660 is 668894625.

It is a happy number.

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 = 5264988597 and 5264988606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5264988661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 544387 + ... + 553973.

It is an arithmetic number, because the mean of its divisors is an integer number (116043564).

Almost surely, 2^5264988660 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 5264988660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8355136608).

5264988660 is an abundant number, since it is smaller than the sum of its proper divisors (11445284556).

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

5264988660 is a wasteful number, since it uses less digits than its factorization.

5264988660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9724 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The square root of 5264988660 is about 72560.2415927621. The cubic root of 5264988660 is about 1739.6657503021.

The spelling of 5264988660 in words is "five billion, two hundred sixty-four million, nine hundred eighty-eight thousand, six hundred sixty".