83867794731828 has 72 divisors (see below), whose sum is σ = 214907457846536. Its totient is φ = 27572433177600.

The previous prime is 83867794731757. The next prime is 83867794731841. The reversal of 83867794731828 is 82813749776838.

83867794731828 is a `hidden beast` number, since 8 + 3 + 8 + 67 + 7 + 9 + 473 + 1 + 82 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23331334383504 + 60536460348324 = 4830252^2 + 7780518^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146991018 + ... + 147560478.

Almost surely, 2^{83867794731828} is an apocalyptic number.

It is an amenable number.

83867794731828 is an abundant number, since it is smaller than the sum of its proper divisors (131039663114708).

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

83867794731828 is a wasteful number, since it uses less digits than its factorization.

83867794731828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625585 (or 625580 counting only the distinct ones).

The product of its digits is 5462360064, while the sum is 81.

The spelling of 83867794731828 in words is "eighty-three trillion, eight hundred sixty-seven billion, seven hundred ninety-four million, seven hundred thirty-one thousand, eight hundred twenty-eight".