99849340731 has 16 divisors (see below), whose sum is σ = 152213129984. Its totient is φ = 57033608544.

The previous prime is 99849340729. The next prime is 99849340771. The reversal of 99849340731 is 13704394899.

It is not a de Polignac number, because 99849340731 - 2¹ = 99849340729 is a prime.

It is a super-2 number, since 2×99849340731² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99849340771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 911860 + ... + 1015473.

It is an arithmetic number, because the mean of its divisors is an integer number (9513320624).

Almost surely, 2^99849340731 is an apocalyptic number.

99849340731 is a deficient number, since it is larger than the sum of its proper divisors (52363789253).

99849340731 is a wasteful number, since it uses less digits than its factorization.

99849340731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929810.

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 99849340731 in words is "ninety-nine billion, eight hundred forty-nine million, three hundred forty thousand, seven hundred thirty-one".