99349361931 has 16 divisors (see below), whose sum is σ = 133013059200. Its totient is φ = 65959838208.

The previous prime is 99349361873. The next prime is 99349361957. The reversal of 99349361931 is 13916394399.

It is not a de Polignac number, because 99349361931 - 2⁷ = 99349361803 is a prime.

It is a super-2 number, since 2×99349361931² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99349361431) 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, 656800 + ... + 793778.

It is an arithmetic number, because the mean of its divisors is an integer number (8313316200).

Almost surely, 2^99349361931 is an apocalyptic number.

99349361931 is a deficient number, since it is larger than the sum of its proper divisors (33663697269).

99349361931 is a wasteful number, since it uses less digits than its factorization.

99349361931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137978.

The product of its digits is 4251528, while the sum is 57.

It can be divided in two parts, 99349 and 361931, that added together give a triangular number (461280 = T₉₆₀).

The spelling of 99349361931 in words is "ninety-nine billion, three hundred forty-nine million, three hundred sixty-one thousand, nine hundred thirty-one".