29953729997 has 2 divisors, whose sum is σ = 29953729998. Its totient is φ = 29953729996.

The previous prime is 29953729987. The next prime is 29953730011. The reversal of 29953729997 is 79992735992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16679464201 + 13274265796 = 129149^2 + 115214^2 .

It is a cyclic number.

It is not a de Polignac number, because 29953729997 - 2¹⁸ = 29953467853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 29953729997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29953729987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14976864998 + 14976864999.

It is an arithmetic number, because the mean of its divisors is an integer number (14976864999).

Almost surely, 2^29953729997 is an apocalyptic number.

It is an amenable number.

29953729997 is a deficient number, since it is larger than the sum of its proper divisors (1).

29953729997 is an equidigital number, since it uses as much as digits as its factorization.

29953729997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 173604060, while the sum is 71.

The spelling of 29953729997 in words is "twenty-nine billion, nine hundred fifty-three million, seven hundred twenty-nine thousand, nine hundred ninety-seven".