83687518426338 has 32 divisors (see below), whose sum is σ = 185977293480000. Its totient is φ = 27895084928928.

The previous prime is 83687518426327. The next prime is 83687518426361. The reversal of 83687518426338 is 83362481578638.

83687518426338 is a `hidden beast` number, since 8 + 3 + 6 + 8 + 7 + 518 + 42 + 63 + 3 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18942963 + ... + 22939286.

It is an arithmetic number, because the mean of its divisors is an integer number (5811790421250).

Almost surely, 2^{83687518426338} is an apocalyptic number.

83687518426338 is an abundant number, since it is smaller than the sum of its proper divisors (102289775053662).

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

83687518426338 is a wasteful number, since it uses less digits than its factorization.

83687518426338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41919263 (or 41919257 counting only the distinct ones).

The product of its digits is 1114767360, while the sum is 72.

The spelling of 83687518426338 in words is "eighty-three trillion, six hundred eighty-seven billion, five hundred eighteen million, four hundred twenty-six thousand, three hundred thirty-eight".