29907749161 has 2 divisors, whose sum is σ = 29907749162. Its totient is φ = 29907749160.

The previous prime is 29907749153. The next prime is 29907749227. The reversal of 29907749161 is 16194770992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29637344025 + 270405136 = 172155^2 + 16444^2 .

It is a cyclic number.

It is not a de Polignac number, because 29907749161 - 2³ = 29907749153 is a prime.

It is not a weakly prime, because it can be changed into another prime (29907749101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14953874580 + 14953874581.

It is an arithmetic number, because the mean of its divisors is an integer number (14953874581).

Almost surely, 2^29907749161 is an apocalyptic number.

It is an amenable number.

29907749161 is a deficient number, since it is larger than the sum of its proper divisors (1).

29907749161 is an equidigital number, since it uses as much as digits as its factorization.

29907749161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 55.

The spelling of 29907749161 in words is "twenty-nine billion, nine hundred seven million, seven hundred forty-nine thousand, one hundred sixty-one".