29116689361 has 4 divisors (see below), whose sum is σ = 30829435812. Its totient is φ = 27403942912.

The previous prime is 29116689337. The next prime is 29116689367. The reversal of 29116689361 is 16398661192.

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 14779021761 + 14337667600 = 121569^2 + 119740^2 .

It is a cyclic number.

It is not a de Polignac number, because 29116689361 - 2⁷ = 29116689233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29116689299 and 29116689308.

It is not an unprimeable number, because it can be changed into a prime (29116689367) 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, 856373200 + ... + 856373233.

It is an arithmetic number, because the mean of its divisors is an integer number (7707358953).

Almost surely, 2^29116689361 is an apocalyptic number.

It is an amenable number.

29116689361 is a deficient number, since it is larger than the sum of its proper divisors (1712746451).

29116689361 is a wasteful number, since it uses less digits than its factorization.

29116689361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712746450.

The product of its digits is 839808, while the sum is 52.

The spelling of 29116689361 in words is "twenty-nine billion, one hundred sixteen million, six hundred eighty-nine thousand, three hundred sixty-one".