999913531941 has 6 divisors (see below), whose sum is σ = 1444319546150. Its totient is φ = 666609021288.

The previous prime is 999913531933. The next prime is 999913531963. The reversal of 999913531941 is 149135319999.

999913531941 is a `hidden beast` number, since 9 + 9 + 9 + 9 + 1 + 3 + 531 + 94 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 845094104100 + 154819427841 = 919290^2 + 393471^2 .

It is not a de Polignac number, because 999913531941 - 2³ = 999913531933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999913511941) 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 5 ways as a sum of consecutive naturals, for example, 55550751766 + ... + 55550751783.

Almost surely, 2^999913531941 is an apocalyptic number.

It is an amenable number.

999913531941 is a deficient number, since it is larger than the sum of its proper divisors (444406014209).

999913531941 is a wasteful number, since it uses less digits than its factorization.

999913531941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111101503555 (or 111101503552 counting only the distinct ones).

The product of its digits is 10628820, while the sum is 63.

The spelling of 999913531941 in words is "nine hundred ninety-nine billion, nine hundred thirteen million, five hundred thirty-one thousand, nine hundred forty-one".