38918681323 has 8 divisors (see below), whose sum is σ = 40186002816. Its totient is φ = 37652102400.

The previous prime is 38918681231. The next prime is 38918681357. The reversal of 38918681323 is 32318681983.

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 38918681323 - 2²¹ = 38916584171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38918687323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78118 + ... + 289723.

It is an arithmetic number, because the mean of its divisors is an integer number (5023250352).

Almost surely, 2^38918681323 is an apocalyptic number.

38918681323 is a deficient number, since it is larger than the sum of its proper divisors (1267321493).

38918681323 is a wasteful number, since it uses less digits than its factorization.

38918681323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371285.

The product of its digits is 1492992, while the sum is 52.

The spelling of 38918681323 in words is "thirty-eight billion, nine hundred eighteen million, six hundred eighty-one thousand, three hundred twenty-three".