42847155767538 has 80 divisors (see below), whose sum is σ = 98262863012160. Its totient is φ = 13947294632544.

The previous prime is 42847155767527. The next prime is 42847155767599. The reversal of 42847155767538 is 83576755174824.

42847155767538 is a `hidden beast` number, since 4 + 2 + 8 + 4 + 7 + 1 + 557 + 67 + 5 + 3 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32504956 + ... + 33797432.

It is an arithmetic number, because the mean of its divisors is an integer number (1228285787652).

Almost surely, 2^{42847155767538} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42847155767538, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49131431506080).

42847155767538 is an abundant number, since it is smaller than the sum of its proper divisors (55415707244622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42847155767538 is a wasteful number, since it uses less digits than its factorization.

42847155767538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297293 (or 1297284 counting only the distinct ones).

The product of its digits is 1580544000, while the sum is 72.

The spelling of 42847155767538 in words is "forty-two trillion, eight hundred forty-seven billion, one hundred fifty-five million, seven hundred sixty-seven thousand, five hundred thirty-eight".