5639529268 has 6 divisors (see below), whose sum is σ = 9869176226. Its totient is φ = 2819764632.

The previous prime is 5639529263. The next prime is 5639529271. The reversal of 5639529268 is 8629259365.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5569338384 + 70190884 = 74628^2 + 8378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5639529263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704941155 + ... + 704941162.

Almost surely, 2^5639529268 is an apocalyptic number.

It is an amenable number.

5639529268 is a deficient number, since it is larger than the sum of its proper divisors (4229646958).

5639529268 is a wasteful number, since it uses less digits than its factorization.

5639529268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409882321 (or 1409882319 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 55.

The square root of 5639529268 is about 75096.7993192786. The cubic root of 5639529268 is about 1779.9765670441.

The spelling of 5639529268 in words is "five billion, six hundred thirty-nine million, five hundred twenty-nine thousand, two hundred sixty-eight".