38678447118628 has 24 divisors (see below), whose sum is σ = 72083158354872. Its totient is φ = 18096410479104.

The previous prime is 38678447118607. The next prime is 38678447118637. The reversal of 38678447118628 is 82681174487683.

It can be written as a sum of positive squares in 4 ways, for example, as 13040346544164 + 25638100574464 = 3611142^2 + 5063408^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1643920875 + ... + 1643944402.

It is an arithmetic number, because the mean of its divisors is an integer number (3003464931453).

Almost surely, 2^{38678447118628} is an apocalyptic number.

It is an amenable number.

38678447118628 is a deficient number, since it is larger than the sum of its proper divisors (33404711236244).

38678447118628 is a wasteful number, since it uses less digits than its factorization.

38678447118628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287865471 (or 3287865469 counting only the distinct ones).

The product of its digits is 693633024, while the sum is 73.

The spelling of 38678447118628 in words is "thirty-eight trillion, six hundred seventy-eight billion, four hundred forty-seven million, one hundred eighteen thousand, six hundred twenty-eight".