29907696349 has 4 divisors (see below), whose sum is σ = 29911438620. Its totient is φ = 29903954080.

The previous prime is 29907696293. The next prime is 29907696391. The reversal of 29907696349 is 94369670992.

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 20838943449 + 9068752900 = 144357^2 + 95230^2 .

It is a cyclic number.

It is not a de Polignac number, because 29907696349 - 2¹³ = 29907688157 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 (29907606349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859122 + ... + 1875139.

It is an arithmetic number, because the mean of its divisors is an integer number (7477859655).

Almost surely, 2^29907696349 is an apocalyptic number.

It is an amenable number.

29907696349 is a deficient number, since it is larger than the sum of its proper divisors (3742271).

29907696349 is an equidigital number, since it uses as much as digits as its factorization.

29907696349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742270.

The product of its (nonzero) digits is 39680928, while the sum is 64.

The spelling of 29907696349 in words is "twenty-nine billion, nine hundred seven million, six hundred ninety-six thousand, three hundred forty-nine".