102181683648 has 112 divisors (see below), whose sum is σ = 299768849280. Its totient is φ = 30456499200.

The previous prime is 102181683647. The next prime is 102181683673. The reversal of 102181683648 is 846386181201.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 102181683597 and 102181683606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102181683647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267738 + ... + 525401.

Almost surely, 2^102181683648 is an apocalyptic number.

It is an amenable number.

102181683648 is an abundant number, since it is smaller than the sum of its proper divisors (197587165632).

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

102181683648 is a wasteful number, since it uses less digits than its factorization.

102181683648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793226 (or 793216 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 102181683648 in words is "one hundred two billion, one hundred eighty-one million, six hundred eighty-three thousand, six hundred forty-eight".