39678455487693 has 12 divisors (see below), whose sum is σ = 58151345233184. Its totient is φ = 24047548780200.

The previous prime is 39678455487689. The next prime is 39678455487703.

39678455487693 is nontrivially palindromic in base 10.

39678455487693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39678455487693 - 2² = 39678455487689 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39678455487653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54653519593 + ... + 54653520318.

Almost surely, 2^{39678455487693} is an apocalyptic number.

39678455487693 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

39678455487693 is a deficient number, since it is larger than the sum of its proper divisors (18472889745491).

39678455487693 is a wasteful number, since it uses less digits than its factorization.

39678455487693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109307039936 (or 109307039925 counting only the distinct ones).

The product of its digits is 32920473600, while the sum is 84.

The spelling of 39678455487693 in words is "thirty-nine trillion, six hundred seventy-eight billion, four hundred fifty-five million, four hundred eighty-seven thousand, six hundred ninety-three".