1013569724644 has 9 divisors (see below), whose sum is σ = 1773750541801. Its totient is φ = 506783855560.

The previous prime is 1013569724633. The next prime is 1013569724681. The reversal of 1013569724644 is 4464279653101.

The square root of 1013569724644 is 1006762.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19082107044 + 994487617600 = 138138^2 + 997240^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013569724591 and 1013569724600.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1761834 + ... + 2265214.

Almost surely, 2^{1013569724644} is an apocalyptic number.

1013569724644 is the 1006762-nd square number.

It is an amenable number.

1013569724644 is a deficient number, since it is larger than the sum of its proper divisors (760180817157).

1013569724644 is an frugal number, since it uses more digits than its factorization.

1013569724644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006766 (or 503383 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 1013569724644 in words is "one trillion, thirteen billion, five hundred sixty-nine million, seven hundred twenty-four thousand, six hundred forty-four".