99789341571 has 24 divisors (see below), whose sum is σ = 152108770320. Its totient is φ = 62866051776.

The previous prime is 99789341563. The next prime is 99789341581. The reversal of 99789341571 is 17514398799.

It is not a de Polignac number, because 99789341571 - 2³ = 99789341563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99789341499 and 99789341508.

It is not an unprimeable number, because it can be changed into a prime (99789341581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 667080 + ... + 802853.

It is an arithmetic number, because the mean of its divisors is an integer number (6337865430).

Almost surely, 2^99789341571 is an apocalyptic number.

99789341571 is a deficient number, since it is larger than the sum of its proper divisors (52319428749).

99789341571 is a wasteful number, since it uses less digits than its factorization.

99789341571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470355 (or 1470352 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 63.

The spelling of 99789341571 in words is "ninety-nine billion, seven hundred eighty-nine million, three hundred forty-one thousand, five hundred seventy-one".