38678674544643 has 16 divisors (see below), whose sum is σ = 61501494928896. Its totient is φ = 21141138881280.

The previous prime is 38678674544641. The next prime is 38678674544651. The reversal of 38678674544643 is 34644547687683.

It is not a de Polignac number, because 38678674544643 - 2¹ = 38678674544641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38678674544641) 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 15 ways as a sum of consecutive naturals, for example, 40040035278 + ... + 40040036243.

It is an arithmetic number, because the mean of its divisors is an integer number (3843843433056).

Almost surely, 2^{38678674544643} is an apocalyptic number.

38678674544643 is a deficient number, since it is larger than the sum of its proper divisors (22822820384253).

38678674544643 is a wasteful number, since it uses less digits than its factorization.

38678674544643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80080071554.

The product of its digits is 7803371520, while the sum is 75.

The spelling of 38678674544643 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred seventy-four million, five hundred forty-four thousand, six hundred forty-three".