29161587149 has 4 divisors (see below), whose sum is σ = 29371382880. Its totient is φ = 28951791420.

The previous prime is 29161587113. The next prime is 29161587199. The reversal of 29161587149 is 94178516192.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29161587149 - 2⁸ = 29161586893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29161587149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29161587199) 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, 104897657 + ... + 104897934.

It is an arithmetic number, because the mean of its divisors is an integer number (7342845720).

Almost surely, 2^29161587149 is an apocalyptic number.

It is an amenable number.

29161587149 is a deficient number, since it is larger than the sum of its proper divisors (209795731).

29161587149 is a wasteful number, since it uses less digits than its factorization.

29161587149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209795730.

The product of its digits is 1088640, while the sum is 53.

The spelling of 29161587149 in words is "twenty-nine billion, one hundred sixty-one million, five hundred eighty-seven thousand, one hundred forty-nine".