38382774978 has 8 divisors (see below), whose sum is σ = 76765549968. Its totient is φ = 12794258324.

The previous prime is 38382774977. The next prime is 38382775001. The reversal of 38382774978 is 87947728383.

It is a sphenic number, since it is the product of 3 distinct primes.

38382774978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (38382774973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3198564576 + ... + 3198564587.

It is an arithmetic number, because the mean of its divisors is an integer number (9595693746).

Almost surely, 2^38382774978 is an apocalyptic number.

38382774978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38382774978 is a wasteful number, since it uses less digits than its factorization.

38382774978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397129168.

The product of its digits is 113799168, while the sum is 66.

The spelling of 38382774978 in words is "thirty-eight billion, three hundred eighty-two million, seven hundred seventy-four thousand, nine hundred seventy-eight".