30139967982 has 16 divisors (see below), whose sum is σ = 60409020672. Its totient is φ = 10025141880.

The previous prime is 30139967971. The next prime is 30139968007. The reversal of 30139967982 is 28976993103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5375494 + ... + 5381097.

It is an arithmetic number, because the mean of its divisors is an integer number (3775563792).

Almost surely, 2^30139967982 is an apocalyptic number.

30139967982 is an abundant number, since it is smaller than the sum of its proper divisors (30269052690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30139967982 is a wasteful number, since it uses less digits than its factorization.

30139967982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10757063.

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 30139967982 in words is "thirty billion, one hundred thirty-nine million, nine hundred sixty-seven thousand, nine hundred eighty-two".