29997465397223 has 2 divisors, whose sum is σ = 29997465397224. Its totient is φ = 29997465397222.

The previous prime is 29997465397219. The next prime is 29997465397279. The reversal of 29997465397223 is 32279356479992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29997465397223 - 2² = 29997465397219 is a prime.

It is a super-2 number, since 2×29997465397223² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29997465397723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14998732698611 + 14998732698612.

It is an arithmetic number, because the mean of its divisors is an integer number (14998732698612).

Almost surely, 2^{29997465397223} is an apocalyptic number.

29997465397223 is a deficient number, since it is larger than the sum of its proper divisors (1).

29997465397223 is an equidigital number, since it uses as much as digits as its factorization.

29997465397223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2777664960, while the sum is 77.

The spelling of 29997465397223 in words is "twenty-nine trillion, nine hundred ninety-seven billion, four hundred sixty-five million, three hundred ninety-seven thousand, two hundred twenty-three".