30400080817 has 2 divisors, whose sum is σ = 30400080818. Its totient is φ = 30400080816.

The previous prime is 30400080797. The next prime is 30400080827. The reversal of 30400080817 is 71808000403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29754870016 + 645210801 = 172496^2 + 25401^2 .

It is an emirp because it is prime and its reverse (71808000403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30400080817 is a prime.

It is not a weakly prime, because it can be changed into another prime (30400080827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15200040408 + 15200040409.

It is an arithmetic number, because the mean of its divisors is an integer number (15200040409).

Almost surely, 2^30400080817 is an apocalyptic number.

It is an amenable number.

30400080817 is a deficient number, since it is larger than the sum of its proper divisors (1).

30400080817 is an equidigital number, since it uses as much as digits as its factorization.

30400080817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 30400080817 in words is "thirty billion, four hundred million, eighty thousand, eight hundred seventeen".