30928309039 has 2 divisors, whose sum is σ = 30928309040. Its totient is φ = 30928309038.

The previous prime is 30928309037. The next prime is 30928309109. The reversal of 30928309039 is 93090382903.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30928309039 - 2¹ = 30928309037 is a prime.

Together with 30928309037, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 30928309039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30928309037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15464154519 + 15464154520.

It is an arithmetic number, because the mean of its divisors is an integer number (15464154520).

Almost surely, 2^30928309039 is an apocalyptic number.

30928309039 is a deficient number, since it is larger than the sum of its proper divisors (1).

30928309039 is an equidigital number, since it uses as much as digits as its factorization.

30928309039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 46.

The spelling of 30928309039 in words is "thirty billion, nine hundred twenty-eight million, three hundred nine thousand, thirty-nine".