9792887750881 has 9 divisors (see below), whose sum is σ = 9837700011219. Its totient is φ = 9748278738336.

The previous prime is 9792887750851. The next prime is 9792887750959. The reversal of 9792887750881 is 1880577882979.

The square root of 9792887750881 is 3129359.

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., 1138606373025 + 8654281377856 = 1067055^2 + 2941816^2 .

It is not a de Polignac number, because 9792887750881 - 2⁹ = 9792887750369 is a prime.

It is a super-2 number, since 2×9792887750881² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9792887750851) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 697840041 + ... + 697854073.

Almost surely, 2^{9792887750881} is an apocalyptic number.

9792887750881 is the 3129359-th square number.

9792887750881 is the 1564680-th centered octagonal number.

It is an amenable number.

9792887750881 is a deficient number, since it is larger than the sum of its proper divisors (44812260338).

9792887750881 is an frugal number, since it uses more digits than its factorization.

9792887750881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28512 (or 14256 counting only the distinct ones).

The product of its (nonzero) digits is 1137991680, while the sum is 79.

The spelling of 9792887750881 in words is "nine trillion, seven hundred ninety-two billion, eight hundred eighty-seven million, seven hundred fifty thousand, eight hundred eighty-one".