5235378644 has 12 divisors (see below), whose sum is σ = 9173957268. Its totient is φ = 2614248000.

The previous prime is 5235378623. The next prime is 5235378647. The reversal of 5235378644 is 4468735325.

It can be written as a sum of positive squares in 2 ways, for example, as 375894544 + 4859484100 = 19388^2 + 69710^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5235378647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856907 + ... + 862994.

It is an arithmetic number, because the mean of its divisors is an integer number (764496439).

Almost surely, 2^5235378644 is an apocalyptic number.

It is an amenable number.

5235378644 is a deficient number, since it is larger than the sum of its proper divisors (3938578624).

5235378644 is a wasteful number, since it uses less digits than its factorization.

5235378644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720666 (or 1720664 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 47.

The square root of 5235378644 is about 72355.9164408827. The cubic root of 5235378644 is about 1736.3983548769.

The spelling of 5235378644 in words is "five billion, two hundred thirty-five million, three hundred seventy-eight thousand, six hundred forty-four".