38678401515263 has 4 divisors (see below), whose sum is σ = 38687897812368. Its totient is φ = 38668905218160.

The previous prime is 38678401515253. The next prime is 38678401515283. The reversal of 38678401515263 is 36251510487683.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 38678401515263 - 2²⁴ = 38678384738047 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 (38678401515253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4748142443 + ... + 4748150588.

It is an arithmetic number, because the mean of its divisors is an integer number (9671974453092).

Almost surely, 2^{38678401515263} is an apocalyptic number.

38678401515263 is a deficient number, since it is larger than the sum of its proper divisors (9496297105).

38678401515263 is an equidigital number, since it uses as much as digits as its factorization.

38678401515263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496297104.

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 38678401515263 in words is "thirty-eight trillion, six hundred seventy-eight billion, four hundred one million, five hundred fifteen thousand, two hundred sixty-three".