38770478855 has 4 divisors (see below), whose sum is σ = 46524574632. Its totient is φ = 31016383080.

The previous prime is 38770478837. The next prime is 38770478867. The reversal of 38770478855 is 55887407783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55887407783 = 127 ⋅440058329.

It is not a de Polignac number, because 38770478855 - 2²⁰ = 38769430279 is a prime.

It is a super-2 number, since 2×38770478855² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3877047881 + ... + 3877047890.

It is an arithmetic number, because the mean of its divisors is an integer number (11631143658).

Almost surely, 2^38770478855 is an apocalyptic number.

38770478855 is a deficient number, since it is larger than the sum of its proper divisors (7754095777).

38770478855 is an equidigital number, since it uses as much as digits as its factorization.

38770478855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7754095776.

The product of its (nonzero) digits is 52684800, while the sum is 62.

The spelling of 38770478855 in words is "thirty-eight billion, seven hundred seventy million, four hundred seventy-eight thousand, eight hundred fifty-five".