29491339409 has 8 divisors (see below), whose sum is σ = 33705809280. Its totient is φ = 25277224896.

The previous prime is 29491339379. The next prime is 29491339411. The reversal of 29491339409 is 90493319492.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29491339409 - 2²⁰ = 29490290833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29491339439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122537 + ... + 272025.

It is an arithmetic number, because the mean of its divisors is an integer number (4213226160).

Almost surely, 2^29491339409 is an apocalyptic number.

It is an amenable number.

29491339409 is a deficient number, since it is larger than the sum of its proper divisors (4214469871).

29491339409 is a wasteful number, since it uses less digits than its factorization.

29491339409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177679.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 29491339409 in words is "twenty-nine billion, four hundred ninety-one million, three hundred thirty-nine thousand, four hundred nine".