30730879933 has 4 divisors (see below), whose sum is σ = 33094793788. Its totient is φ = 28366966080.

The previous prime is 30730879903. The next prime is 30730879939. The reversal of 30730879933 is 33997803703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33997803703 = 1051 ⋅32348053.

It can be written as a sum of positive squares in 2 ways, for example, as 20862046969 + 9868832964 = 144437^2 + 99342^2 .

It is a cyclic number.

It is not a de Polignac number, because 30730879933 - 2²⁵ = 30697325501 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 (30730879939) 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 3 ways as a sum of consecutive naturals, for example, 1181956908 + ... + 1181956933.

It is an arithmetic number, because the mean of its divisors is an integer number (8273698447).

Almost surely, 2^30730879933 is an apocalyptic number.

It is an amenable number.

30730879933 is a deficient number, since it is larger than the sum of its proper divisors (2363913855).

30730879933 is a wasteful number, since it uses less digits than its factorization.

30730879933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363913854.

The product of its (nonzero) digits is 2571912, while the sum is 52.

The spelling of 30730879933 in words is "thirty billion, seven hundred thirty million, eight hundred seventy-nine thousand, nine hundred thirty-three".