102605812284 has 24 divisors (see below), whose sum is σ = 239425516288. Its totient is φ = 34200229680.

The previous prime is 102605812261. The next prime is 102605812297. The reversal of 102605812284 is 482218506201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49869 + ... + 455739.

Almost surely, 2^102605812284 is an apocalyptic number.

It is an amenable number.

102605812284 is an abundant number, since it is smaller than the sum of its proper divisors (136819704004).

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

102605812284 is a wasteful number, since it uses less digits than its factorization.

102605812284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426945 (or 426943 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 39.

The spelling of 102605812284 in words is "one hundred two billion, six hundred five million, eight hundred twelve thousand, two hundred eighty-four".