38406962729 has 8 divisors (see below), whose sum is σ = 40464404640. Its totient is φ = 36353123136.

The previous prime is 38406962719. The next prime is 38406962743. The reversal of 38406962729 is 92726960483.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38406962729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38406962719) 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, 878672 + ... + 921345.

It is an arithmetic number, because the mean of its divisors is an integer number (5058050580).

Almost surely, 2^38406962729 is an apocalyptic number.

It is an amenable number.

38406962729 is a deficient number, since it is larger than the sum of its proper divisors (2057441911).

38406962729 is a wasteful number, since it uses less digits than its factorization.

38406962729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801159.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 38406962729 in words is "thirty-eight billion, four hundred six million, nine hundred sixty-two thousand, seven hundred twenty-nine".