38678630641487 has 2 divisors, whose sum is σ = 38678630641488. Its totient is φ = 38678630641486.

The previous prime is 38678630641459. The next prime is 38678630641543. The reversal of 38678630641487 is 78414603687683.

It is a weak prime.

It is an emirp because it is prime and its reverse (78414603687683) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38678630641487 - 2²⁸ = 38678362206031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38678630641487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38678630641447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19339315320743 + 19339315320744.

It is an arithmetic number, because the mean of its divisors is an integer number (19339315320744).

Almost surely, 2^{38678630641487} is an apocalyptic number.

38678630641487 is a deficient number, since it is larger than the sum of its proper divisors (1).

38678630641487 is an equidigital number, since it uses as much as digits as its factorization.

38678630641487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 780337152, while the sum is 71.

The spelling of 38678630641487 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred thirty million, six hundred forty-one thousand, four hundred eighty-seven".