866428410688 has 14 divisors (see below), whose sum is σ = 1719318877586. Its totient is φ = 433214205312.

The previous prime is 866428410613. The next prime is 866428410713. The reversal of 866428410688 is 886014824668.

It can be written as a sum of positive squares in only one way, i.e., 794437081344 + 71991329344 = 891312^2 + 268312^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6768971895 + ... + 6768972022.

Almost surely, 2^866428410688 is an apocalyptic number.

It is an amenable number.

866428410688 is a deficient number, since it is larger than the sum of its proper divisors (852890466898).

866428410688 is a wasteful number, since it uses less digits than its factorization.

866428410688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13537943929 (or 13537943919 counting only the distinct ones).

The product of its (nonzero) digits is 28311552, while the sum is 61.

The spelling of 866428410688 in words is "eight hundred sixty-six billion, four hundred twenty-eight million, four hundred ten thousand, six hundred eighty-eight".