29997465390517 has 2 divisors, whose sum is σ = 29997465390518. Its totient is φ = 29997465390516.

The previous prime is 29997465390481. The next prime is 29997465390533. The reversal of 29997465390517 is 71509356479992.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21031267592196 + 8966197798321 = 4585986^2 + 2994361^2 .

It is a cyclic number.

It is not a de Polignac number, because 29997465390517 - 2³⁹ = 29447709576629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29997465390017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14998732695258 + 14998732695259.

It is an arithmetic number, because the mean of its divisors is an integer number (14998732695259).

Almost surely, 2^{29997465390517} is an apocalyptic number.

It is an amenable number.

29997465390517 is a deficient number, since it is larger than the sum of its proper divisors (1).

29997465390517 is an equidigital number, since it uses as much as digits as its factorization.

29997465390517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1157360400, while the sum is 76.

The spelling of 29997465390517 in words is "twenty-nine trillion, nine hundred ninety-seven billion, four hundred sixty-five million, three hundred ninety thousand, five hundred seventeen".