38847686081644 has 48 divisors (see below), whose sum is σ = 77853705753600. Its totient is φ = 16798790606400.

The previous prime is 38847686081641. The next prime is 38847686081663. The reversal of 38847686081644 is 44618068674883.

It is a Smith number, since the sum of its digits (73) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38847686081641) 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, 241281459 + ... + 241442410.

It is an arithmetic number, because the mean of its divisors is an integer number (1621952203200).

Almost surely, 2^{38847686081644} is an apocalyptic number.

It is an amenable number.

38847686081644 is an abundant number, since it is smaller than the sum of its proper divisors (39006019671956).

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

38847686081644 is a wasteful number, since it uses less digits than its factorization.

38847686081644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482723974 (or 482723972 counting only the distinct ones).

The product of its (nonzero) digits is 1189085184, while the sum is 73.

The spelling of 38847686081644 in words is "thirty-eight trillion, eight hundred forty-seven billion, six hundred eighty-six million, eighty-one thousand, six hundred forty-four".