30725399983 has 2 divisors, whose sum is σ = 30725399984. Its totient is φ = 30725399982.

The previous prime is 30725399893. The next prime is 30725400031. The reversal of 30725399983 is 38999352703.

Together with previous prime (30725399893) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (38999352703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30725399983 - 2²⁹ = 30188529071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30725394983) 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 as a sum of consecutive naturals, namely, 15362699991 + 15362699992.

It is an arithmetic number, because the mean of its divisors is an integer number (15362699992).

Almost surely, 2^30725399983 is an apocalyptic number.

30725399983 is a deficient number, since it is larger than the sum of its proper divisors (1).

30725399983 is an equidigital number, since it uses as much as digits as its factorization.

30725399983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11022480, while the sum is 58.

The spelling of 30725399983 in words is "thirty billion, seven hundred twenty-five million, three hundred ninety-nine thousand, nine hundred eighty-three".