29570668397 has 4 divisors (see below), whose sum is σ = 29574714876. Its totient is φ = 29566621920.

The previous prime is 29570668357. The next prime is 29570668423. The reversal of 29570668397 is 79386607592.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11027310121 + 18543358276 = 105011^2 + 136174^2 .

It is a cyclic number.

It is not a de Polignac number, because 29570668397 - 2²⁴ = 29553891181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29570668357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012258 + ... + 2026899.

It is an arithmetic number, because the mean of its divisors is an integer number (7393678719).

Almost surely, 2^29570668397 is an apocalyptic number.

It is an amenable number.

29570668397 is a deficient number, since it is larger than the sum of its proper divisors (4046479).

29570668397 is an equidigital number, since it uses as much as digits as its factorization.

29570668397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046478.

The product of its (nonzero) digits is 34292160, while the sum is 62.

The spelling of 29570668397 in words is "twenty-nine billion, five hundred seventy million, six hundred sixty-eight thousand, three hundred ninety-seven".