38884686091 has 4 divisors (see below), whose sum is σ = 38885731992. Its totient is φ = 38883640192.

The previous prime is 38884686089. The next prime is 38884686133. The reversal of 38884686091 is 19068648883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19068648883 = 5987 ⋅3185009.

It is a cyclic number.

It is not a de Polignac number, because 38884686091 - 2¹ = 38884686089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38884686031) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 465046 + ... + 542251.

It is an arithmetic number, because the mean of its divisors is an integer number (9721432998).

Almost surely, 2^38884686091 is an apocalyptic number.

38884686091 is a deficient number, since it is larger than the sum of its proper divisors (1045901).

38884686091 is a wasteful number, since it uses less digits than its factorization.

38884686091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045900.

The product of its (nonzero) digits is 15925248, while the sum is 61.

The spelling of 38884686091 in words is "thirty-eight billion, eight hundred eighty-four million, six hundred eighty-six thousand, ninety-one".