38778234647668 has 48 divisors (see below), whose sum is σ = 70599928089600. Its totient is φ = 18614701082880.

The previous prime is 38778234647657. The next prime is 38778234647741. The reversal of 38778234647668 is 86674643287783.

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, 13441021 + ... + 16069147.

It is an arithmetic number, because the mean of its divisors is an integer number (1470831835200).

Almost surely, 2^{38778234647668} is an apocalyptic number.

It is an amenable number.

38778234647668 is a deficient number, since it is larger than the sum of its proper divisors (31821693441932).

38778234647668 is a wasteful number, since it uses less digits than its factorization.

38778234647668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628880 (or 2628878 counting only the distinct ones).

The product of its digits is 10924720128, while the sum is 79.

The spelling of 38778234647668 in words is "thirty-eight trillion, seven hundred seventy-eight billion, two hundred thirty-four million, six hundred forty-seven thousand, six hundred sixty-eight".