42671347851555 has 12 divisors (see below), whose sum is σ = 73963669609440. Its totient is φ = 22758052187472.

The previous prime is 42671347851553. The next prime is 42671347851569. The reversal of 42671347851555 is 55515874317624.

42671347851555 is a `hidden beast` number, since 4 + 2 + 6 + 7 + 1 + 3 + 4 + 78 + 5 + 1 + 555 = 666.

42671347851555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42671347851555 - 2¹ = 42671347851553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42671347851492 and 42671347851501.

It is not an unprimeable number, because it can be changed into a prime (42671347851553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474126087195 + ... + 474126087284.

It is an arithmetic number, because the mean of its divisors is an integer number (6163639134120).

Almost surely, 2^{42671347851555} is an apocalyptic number.

42671347851555 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42671347851555 is a deficient number, since it is larger than the sum of its proper divisors (31292321757885).

42671347851555 is a wasteful number, since it uses less digits than its factorization.

42671347851555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948252174490 (or 948252174487 counting only the distinct ones).

The product of its digits is 141120000, while the sum is 63.

The spelling of 42671347851555 in words is "forty-two trillion, six hundred seventy-one billion, three hundred forty-seven million, eight hundred fifty-one thousand, five hundred fifty-five".