30172744813 has 2 divisors, whose sum is σ = 30172744814. Its totient is φ = 30172744812.

The previous prime is 30172744769. The next prime is 30172744829. The reversal of 30172744813 is 31844727103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25425259209 + 4747485604 = 159453^2 + 68902^2 .

It is a cyclic number.

It is not a de Polignac number, because 30172744813 - 2¹⁷ = 30172613741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30172744843) 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, 15086372406 + 15086372407.

It is an arithmetic number, because the mean of its divisors is an integer number (15086372407).

Almost surely, 2^30172744813 is an apocalyptic number.

It is an amenable number.

30172744813 is a deficient number, since it is larger than the sum of its proper divisors (1).

30172744813 is an equidigital number, since it uses as much as digits as its factorization.

30172744813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 30172744813 in words is "thirty billion, one hundred seventy-two million, seven hundred forty-four thousand, eight hundred thirteen".