30533376989 has 2 divisors, whose sum is σ = 30533376990. Its totient is φ = 30533376988.

The previous prime is 30533376893. The next prime is 30533377003. The reversal of 30533376989 is 98967333503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27442572964 + 3090804025 = 165658^2 + 55595^2 .

It is a cyclic number.

It is not a de Polignac number, because 30533376989 - 2⁸ = 30533376733 is a prime.

It is a super-2 number, since 2×30533376989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30533376389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15266688494 + 15266688495.

It is an arithmetic number, because the mean of its divisors is an integer number (15266688495).

Almost surely, 2^30533376989 is an apocalyptic number.

It is an amenable number.

30533376989 is a deficient number, since it is larger than the sum of its proper divisors (1).

30533376989 is an equidigital number, since it uses as much as digits as its factorization.

30533376989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 56.

The spelling of 30533376989 in words is "thirty billion, five hundred thirty-three million, three hundred seventy-six thousand, nine hundred eighty-nine".