38947403689680 has 80 divisors (see below), whose sum is σ = 120932003517120. Its totient is φ = 10369195643904.

The previous prime is 38947403689673. The next prime is 38947403689703. The reversal of 38947403689680 is 8698630474983.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130934517 + ... + 131231636.

It is an arithmetic number, because the mean of its divisors is an integer number (1511650043964).

Almost surely, 2^{38947403689680} is an apocalyptic number.

38947403689680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38947403689680 is an abundant number, since it is smaller than the sum of its proper divisors (81984599827440).

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

38947403689680 is a wasteful number, since it uses less digits than its factorization.

38947403689680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262166788 (or 262166782 counting only the distinct ones).

The product of its (nonzero) digits is 1504935936, while the sum is 75.

The spelling of 38947403689680 in words is "thirty-eight trillion, nine hundred forty-seven billion, four hundred three million, six hundred eighty-nine thousand, six hundred eighty".