30325540639 has 2 divisors, whose sum is σ = 30325540640. Its totient is φ = 30325540638.

The previous prime is 30325540523. The next prime is 30325540669. The reversal of 30325540639 is 93604552303.

It is a strong prime.

It is an emirp because it is prime and its reverse (93604552303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30325540639 - 2¹⁵ = 30325507871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30325540669) 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, 15162770319 + 15162770320.

It is an arithmetic number, because the mean of its divisors is an integer number (15162770320).

Almost surely, 2^30325540639 is an apocalyptic number.

30325540639 is a deficient number, since it is larger than the sum of its proper divisors (1).

30325540639 is an equidigital number, since it uses as much as digits as its factorization.

30325540639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 30325540639 in words is "thirty billion, three hundred twenty-five million, five hundred forty thousand, six hundred thirty-nine".