38638594465 has 8 divisors (see below), whose sum is σ = 48806645760. Its totient is φ = 29283987312.

The previous prime is 38638594459. The next prime is 38638594487. The reversal of 38638594465 is 56449583683.

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 38638594465 - 2¹⁵ = 38638561697 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203360929 + ... + 203361118.

It is an arithmetic number, because the mean of its divisors is an integer number (6100830720).

Almost surely, 2^38638594465 is an apocalyptic number.

It is an amenable number.

38638594465 is a deficient number, since it is larger than the sum of its proper divisors (10168051295).

38638594465 is a wasteful number, since it uses less digits than its factorization.

38638594465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406722071.

The product of its digits is 74649600, while the sum is 61.

The spelling of 38638594465 in words is "thirty-eight billion, six hundred thirty-eight million, five hundred ninety-four thousand, four hundred sixty-five".