38464966689 has 16 divisors (see below), whose sum is σ = 53992975680. Its totient is φ = 24290487360.

The previous prime is 38464966643. The next prime is 38464966691. The reversal of 38464966689 is 98666946483.

It is not a de Polignac number, because 38464966689 - 2¹² = 38464962593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38464966699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442399 + ... + 522155.

It is an arithmetic number, because the mean of its divisors is an integer number (3374560980).

Almost surely, 2^38464966689 is an apocalyptic number.

It is an amenable number.

38464966689 is a deficient number, since it is larger than the sum of its proper divisors (15528008991).

38464966689 is a wasteful number, since it uses less digits than its factorization.

38464966689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88240.

The product of its digits is 322486272, while the sum is 69.

The spelling of 38464966689 in words is "thirty-eight billion, four hundred sixty-four million, nine hundred sixty-six thousand, six hundred eighty-nine".