102012252689 has 8 divisors (see below), whose sum is σ = 107408237280. Its totient is φ = 96618960000.

The previous prime is 102012252679. The next prime is 102012252697. The reversal of 102012252689 is 986252210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102012252689 - 2¹² = 102012248593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102012252679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594947 + ... + 746984.

It is an arithmetic number, because the mean of its divisors is an integer number (13426029660).

Almost surely, 2^102012252689 is an apocalyptic number.

102012252689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

102012252689 is a deficient number, since it is larger than the sum of its proper divisors (5395984591).

102012252689 is a wasteful number, since it uses less digits than its factorization.

102012252689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345951.

The product of its (nonzero) digits is 34560, while the sum is 38.

The spelling of 102012252689 in words is "one hundred two billion, twelve million, two hundred fifty-two thousand, six hundred eighty-nine".