29926136917 has 2 divisors, whose sum is σ = 29926136918. Its totient is φ = 29926136916.

The previous prime is 29926136897. The next prime is 29926136923. The reversal of 29926136917 is 71963162992.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23071787236 + 6854349681 = 151894^2 + 82791^2 .

It is a cyclic number.

It is not a de Polignac number, because 29926136917 - 2²⁷ = 29791919189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29926136927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14963068458 + 14963068459.

It is an arithmetic number, because the mean of its divisors is an integer number (14963068459).

Almost surely, 2^29926136917 is an apocalyptic number.

It is an amenable number.

29926136917 is a deficient number, since it is larger than the sum of its proper divisors (1).

29926136917 is an equidigital number, since it uses as much as digits as its factorization.

29926136917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 55.

The spelling of 29926136917 in words is "twenty-nine billion, nine hundred twenty-six million, one hundred thirty-six thousand, nine hundred seventeen".