1001572617796 has 9 divisors (see below), whose sum is σ = 1752755583901. Its totient is φ = 500785308112.

The previous prime is 1001572617761. The next prime is 1001572617841. The reversal of 1001572617796 is 6977162751001.

The square root of 1001572617796 is 1000786.

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., 496813522500 + 504759095296 = 704850^2 + 710464^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1751376 + ... + 2251768.

Almost surely, 2^{1001572617796} is an apocalyptic number.

1001572617796 is the 1000786-th square number.

It is an amenable number.

1001572617796 is a deficient number, since it is larger than the sum of its proper divisors (751182966105).

1001572617796 is an frugal number, since it uses more digits than its factorization.

1001572617796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000790 (or 500395 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 52.

The spelling of 1001572617796 in words is "one trillion, one billion, five hundred seventy-two million, six hundred seventeen thousand, seven hundred ninety-six".