30709983139 has 16 divisors (see below), whose sum is σ = 34658759520. Its totient is φ = 26967520000.

The previous prime is 30709983137. The next prime is 30709983169. The reversal of 30709983139 is 93138990703.

It is a cyclic number.

It is not a de Polignac number, because 30709983139 - 2¹ = 30709983137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30709983137) 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 15 ways as a sum of consecutive naturals, for example, 291544 + ... + 382645.

It is an arithmetic number, because the mean of its divisors is an integer number (2166172470).

Almost surely, 2^30709983139 is an apocalyptic number.

30709983139 is a deficient number, since it is larger than the sum of its proper divisors (3948776381).

30709983139 is a wasteful number, since it uses less digits than its factorization.

30709983139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674342.

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 30709983139 in words is "thirty billion, seven hundred nine million, nine hundred eighty-three thousand, one hundred thirty-nine".