5636351240 has 64 divisors (see below), whose sum is σ = 13726888560. Its totient is φ = 2070512640.

The previous prime is 5636351209. The next prime is 5636351257. The reversal of 5636351240 is 421536365.

It can be written as a sum of positive squares in 8 ways, for example, as 2482630276 + 3153720964 = 49826^2 + 56158^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5636351240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74930 + ... + 129950.

Almost surely, 2^5636351240 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 5636351240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6863444280).

5636351240 is an abundant number, since it is smaller than the sum of its proper divisors (8090537320).

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

5636351240 is a wasteful number, since it uses less digits than its factorization.

5636351240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55242 (or 55238 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 5636351240 is about 75075.6367938361. The cubic root of 5636351240 is about 1779.6421491626.

The spelling of 5636351240 in words is "five billion, six hundred thirty-six million, three hundred fifty-one thousand, two hundred forty".