866788524523252 has 24 divisors (see below), whose sum is σ = 1518490065800736. Its totient is φ = 432934225060128.

The previous prime is 866788524523219. The next prime is 866788524523267. The reversal of 866788524523252 is 252325425887668.

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, 831031938 + ... + 832074310.

It is an arithmetic number, because the mean of its divisors is an integer number (63270419408364).

Almost surely, 2^{866788524523252} is an apocalyptic number.

It is an amenable number.

866788524523252 is a deficient number, since it is larger than the sum of its proper divisors (651701541277484).

866788524523252 is a wasteful number, since it uses less digits than its factorization.

866788524523252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262847 (or 1262845 counting only the distinct ones).

The product of its digits is 3096576000, while the sum is 73.

The spelling of 866788524523252 in words is "eight hundred sixty-six trillion, seven hundred eighty-eight billion, five hundred twenty-four million, five hundred twenty-three thousand, two hundred fifty-two".