9882971791 has 16 divisors (see below), whose sum is σ = 12523627008. Its totient is φ = 7574767200.

The previous prime is 9882971789. The next prime is 9882971837. The reversal of 9882971791 is 1971792889.

It is not a de Polignac number, because 9882971791 - 2¹ = 9882971789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9882971701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1047355 + ... + 1056748.

It is an arithmetic number, because the mean of its divisors is an integer number (782726688).

Almost surely, 2^9882971791 is an apocalyptic number.

9882971791 is a deficient number, since it is larger than the sum of its proper divisors (2640655217).

9882971791 is a wasteful number, since it uses less digits than its factorization.

9882971791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104182.

The product of its digits is 4572288, while the sum is 61.

The square root of 9882971791 is about 99413.1369135890. The cubic root of 9882971791 is about 2145.9973693412.

The spelling of 9882971791 in words is "nine billion, eight hundred eighty-two million, nine hundred seventy-one thousand, seven hundred ninety-one".