38781755862255 has 48 divisors (see below), whose sum is σ = 76833634313280. Its totient is φ = 17726766672384.

The previous prime is 38781755862253. The next prime is 38781755862287. The reversal of 38781755862255 is 55226855718783.

38781755862255 is a `hidden beast` number, since 3 + 8 + 7 + 8 + 1 + 7 + 558 + 62 + 2 + 5 + 5 = 666.

It is not a de Polignac number, because 38781755862255 - 2¹ = 38781755862253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38781755862253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4320520 + ... + 9809709.

It is an arithmetic number, because the mean of its divisors is an integer number (1600700714860).

Almost surely, 2^{38781755862255} is an apocalyptic number.

38781755862255 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38781755862255 is a deficient number, since it is larger than the sum of its proper divisors (38051878451025).

38781755862255 is a wasteful number, since it uses less digits than its factorization.

38781755862255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14138960 (or 14138957 counting only the distinct ones).

The product of its digits is 1128960000, while the sum is 72.

The spelling of 38781755862255 in words is "thirty-eight trillion, seven hundred eighty-one billion, seven hundred fifty-five million, eight hundred sixty-two thousand, two hundred fifty-five".