38744066686886 has 32 divisors (see below), whose sum is σ = 63601359386400. Its totient is φ = 17554837996800.

The previous prime is 38744066686817. The next prime is 38744066686901. The reversal of 38744066686886 is 68868666044783.

It is a super-2 number, since 2×38744066686886² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38744066686886.

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, 297368996 + ... + 297499256.

It is an arithmetic number, because the mean of its divisors is an integer number (1987542480825).

Almost surely, 2^{38744066686886} is an apocalyptic number.

38744066686886 is a deficient number, since it is larger than the sum of its proper divisors (24857292699514).

38744066686886 is a wasteful number, since it uses less digits than its factorization.

38744066686886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173240.

The product of its (nonzero) digits is 10701766656, while the sum is 80.

The spelling of 38744066686886 in words is "thirty-eight trillion, seven hundred forty-four billion, sixty-six million, six hundred eighty-six thousand, eight hundred eighty-six".