30782820097 has 4 divisors (see below), whose sum is σ = 31087600596. Its totient is φ = 30478039600.

The previous prime is 30782820073. The next prime is 30782820121. The reversal of 30782820097 is 79002828703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79002828703 = 47 ⋅1680911249.

It is an interprime number because it is at equal distance from previous prime (30782820073) and next prime (30782820121).

It can be written as a sum of positive squares in 2 ways, for example, as 18593776881 + 12189043216 = 136359^2 + 110404^2 .

It is a cyclic number.

It is not a de Polignac number, because 30782820097 - 2¹¹ = 30782818049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30782820007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152390098 + ... + 152390299.

It is an arithmetic number, because the mean of its divisors is an integer number (7771900149).

Almost surely, 2^30782820097 is an apocalyptic number.

It is an amenable number.

30782820097 is a deficient number, since it is larger than the sum of its proper divisors (304780499).

30782820097 is a wasteful number, since it uses less digits than its factorization.

30782820097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304780498.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 30782820097 in words is "thirty billion, seven hundred eighty-two million, eight hundred twenty thousand, ninety-seven".