29417542639 has 4 divisors (see below), whose sum is σ = 30696566256. Its totient is φ = 28138519024.

The previous prime is 29417542633. The next prime is 29417542669. The reversal of 29417542639 is 93624571492.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29417542639 - 2¹⁷ = 29417411567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29417542633) 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, 639511774 + ... + 639511819.

It is an arithmetic number, because the mean of its divisors is an integer number (7674141564).

Almost surely, 2^29417542639 is an apocalyptic number.

29417542639 is a deficient number, since it is larger than the sum of its proper divisors (1279023617).

29417542639 is a wasteful number, since it uses less digits than its factorization.

29417542639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279023616.

The product of its digits is 3265920, while the sum is 52.

The spelling of 29417542639 in words is "twenty-nine billion, four hundred seventeen million, five hundred forty-two thousand, six hundred thirty-nine".