866958012 has 48 divisors (see below), whose sum is σ = 2263878400. Its totient is φ = 286902000.

The previous prime is 866957999. The next prime is 866958013. The reversal of 866958012 is 210859668.

866958012 is a `hidden beast` number, since 8 + 6 + 69 + 580 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866958013) 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, 13864 + ... + 43887.

Almost surely, 2^866958012 is an apocalyptic number.

It is an amenable number.

866958012 is an abundant number, since it is smaller than the sum of its proper divisors (1396920388).

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

866958012 is a wasteful number, since it uses less digits than its factorization.

866958012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57903 (or 57895 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 866958012 is about 29444.1507264176. The cubic root of 866958012 is about 953.5263263029.

The spelling of 866958012 in words is "eight hundred sixty-six million, nine hundred fifty-eight thousand, twelve".