30917883133457 has 2 divisors, whose sum is σ = 30917883133458. Its totient is φ = 30917883133456.

The previous prime is 30917883133439. The next prime is 30917883133469. The reversal of 30917883133457 is 75433138871903.

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., 27635586385936 + 3282296747521 = 5256956^2 + 1811711^2 .

It is an emirp because it is prime and its reverse (75433138871903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30917883133457 - 2³⁴ = 30900703264273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30917883133457.

It is not a weakly prime, because it can be changed into another prime (30917883133427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15458941566728 + 15458941566729.

It is an arithmetic number, because the mean of its divisors is an integer number (15458941566729).

Almost surely, 2^{30917883133457} is an apocalyptic number.

It is an amenable number.

30917883133457 is a deficient number, since it is larger than the sum of its proper divisors (1).

30917883133457 is an equidigital number, since it uses as much as digits as its factorization.

30917883133457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45722880, while the sum is 62.

The spelling of 30917883133457 in words is "thirty trillion, nine hundred seventeen billion, eight hundred eighty-three million, one hundred thirty-three thousand, four hundred fifty-seven".