30819909097 has 2 divisors, whose sum is σ = 30819909098. Its totient is φ = 30819909096.

The previous prime is 30819909091. The next prime is 30819909137. The reversal of 30819909097 is 79090991803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25915848256 + 4904060841 = 160984^2 + 70029^2 .

It is a cyclic number.

It is not a de Polignac number, because 30819909097 - 2³ = 30819909089 is a prime.

It is not a weakly prime, because it can be changed into another prime (30819909091) 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, 15409954548 + 15409954549.

It is an arithmetic number, because the mean of its divisors is an integer number (15409954549).

Almost surely, 2^30819909097 is an apocalyptic number.

It is an amenable number.

30819909097 is a deficient number, since it is larger than the sum of its proper divisors (1).

30819909097 is an equidigital number, since it uses as much as digits as its factorization.

30819909097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 55.

The spelling of 30819909097 in words is "thirty billion, eight hundred nineteen million, nine hundred nine thousand, ninety-seven".