30507326809 has 2 divisors, whose sum is σ = 30507326810. Its totient is φ = 30507326808.

The previous prime is 30507326807. The next prime is 30507326833. The reversal of 30507326809 is 90862370503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29549610000 + 957716809 = 171900^2 + 30947^2 .

It is a cyclic number.

It is not a de Polignac number, because 30507326809 - 2¹ = 30507326807 is a prime.

It is a super-2 number, since 2×30507326809² (a number of 22 digits) contains 22 as substring.

Together with 30507326807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30507326807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15253663404 + 15253663405.

It is an arithmetic number, because the mean of its divisors is an integer number (15253663405).

Almost surely, 2^30507326809 is an apocalyptic number.

It is an amenable number.

30507326809 is a deficient number, since it is larger than the sum of its proper divisors (1).

30507326809 is an equidigital number, since it uses as much as digits as its factorization.

30507326809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 30507326809 in words is "thirty billion, five hundred seven million, three hundred twenty-six thousand, eight hundred nine".