29116909631 has 2 divisors, whose sum is σ = 29116909632. Its totient is φ = 29116909630.

The previous prime is 29116909603. The next prime is 29116909669. The reversal of 29116909631 is 13690961192.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29116909631 - 2³⁰ = 28043167807 is a prime.

It is a super-2 number, since 2×29116909631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29116909531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14558454815 + 14558454816.

It is an arithmetic number, because the mean of its divisors is an integer number (14558454816).

Almost surely, 2^29116909631 is an apocalyptic number.

29116909631 is a deficient number, since it is larger than the sum of its proper divisors (1).

29116909631 is an equidigital number, since it uses as much as digits as its factorization.

29116909631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 157464, while the sum is 47.

The spelling of 29116909631 in words is "twenty-nine billion, one hundred sixteen million, nine hundred nine thousand, six hundred thirty-one".