29438456641 has 8 divisors (see below), whose sum is σ = 32414818464. Its totient is φ = 26512117920.

The previous prime is 29438456639. The next prime is 29438456659. The reversal of 29438456641 is 14665483492.

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

It is a cyclic number.

It is not a de Polignac number, because 29438456641 - 2¹ = 29438456639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29438456611) 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, 12504540 + ... + 12506893.

It is an arithmetic number, because the mean of its divisors is an integer number (4051852308).

Almost surely, 2^29438456641 is an apocalyptic number.

It is an amenable number.

29438456641 is a deficient number, since it is larger than the sum of its proper divisors (2976361823).

29438456641 is a wasteful number, since it uses less digits than its factorization.

29438456641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25011551.

The product of its digits is 4976640, while the sum is 52.

The spelling of 29438456641 in words is "twenty-nine billion, four hundred thirty-eight million, four hundred fifty-six thousand, six hundred forty-one".