30940185409839 has 16 divisors (see below), whose sum is σ = 45857674896640. Its totient is φ = 20617626843000.

The previous prime is 30940185409831. The next prime is 30940185409907. The reversal of 30940185409839 is 93890458104903.

30940185409839 is a `hidden beast` number, since 3 + 0 + 9 + 4 + 0 + 1 + 8 + 540 + 9 + 83 + 9 = 666.

It is not a de Polignac number, because 30940185409839 - 2³ = 30940185409831 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 (30940185409831) 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, 254477827 + ... + 254599380.

It is an arithmetic number, because the mean of its divisors is an integer number (2866104681040).

Almost surely, 2^{30940185409839} is an apocalyptic number.

30940185409839 is a deficient number, since it is larger than the sum of its proper divisors (14917489486801).

30940185409839 is a wasteful number, since it uses less digits than its factorization.

30940185409839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509079467 (or 509079461 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 30940185409839 in words is "thirty trillion, nine hundred forty billion, one hundred eighty-five million, four hundred nine thousand, eight hundred thirty-nine".