38678403552215 has 12 divisors (see below), whose sum is σ = 53991893938536. Its totient is φ = 26522333864208.

The previous prime is 38678403552209. The next prime is 38678403552221. The reversal of 38678403552215 is 51225530487683.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (38678403552209) and next prime (38678403552221).

It is not a de Polignac number, because 38678403552215 - 2²⁸ = 38678135116759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78935517209 + ... + 78935517698.

It is an arithmetic number, because the mean of its divisors is an integer number (4499324494878).

Almost surely, 2^{38678403552215} is an apocalyptic number.

38678403552215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38678403552215 is a deficient number, since it is larger than the sum of its proper divisors (15313490386321).

38678403552215 is a wasteful number, since it uses less digits than its factorization.

38678403552215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157871034926 (or 157871034919 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 59.

The spelling of 38678403552215 in words is "thirty-eight trillion, six hundred seventy-eight billion, four hundred three million, five hundred fifty-two thousand, two hundred fifteen".