38678881240855 has 4 divisors (see below), whose sum is σ = 46414657489032. Its totient is φ = 30943104992680.

The previous prime is 38678881240789. The next prime is 38678881240873. The reversal of 38678881240855 is 55804218887683.

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

It is not a de Polignac number, because 38678881240855 - 2¹¹ = 38678881238807 is a prime.

It is a super-2 number, since 2×38678881240855² (a number of 28 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 3867888124081 + ... + 3867888124090.

It is an arithmetic number, because the mean of its divisors is an integer number (11603664372258).

Almost surely, 2^{38678881240855} is an apocalyptic number.

38678881240855 is a deficient number, since it is larger than the sum of its proper divisors (7735776248177).

38678881240855 is an equidigital number, since it uses as much as digits as its factorization.

38678881240855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735776248176.

The product of its (nonzero) digits is 825753600, while the sum is 73.

The spelling of 38678881240855 in words is "thirty-eight trillion, six hundred seventy-eight billion, eight hundred eighty-one million, two hundred forty thousand, eight hundred fifty-five".