866779151 has 8 divisors (see below), whose sum is σ = 1004175264. Its totient is φ = 732775680.

The previous prime is 866779103. The next prime is 866779159. The reversal of 866779151 is 151977668.

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

It is a de Polignac number, because none of the positive numbers 2^k-866779151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 866779151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866779159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847610 + ... + 848631.

It is an arithmetic number, because the mean of its divisors is an integer number (125521908).

Almost surely, 2^866779151 is an apocalyptic number.

866779151 is a deficient number, since it is larger than the sum of its proper divisors (137396113).

866779151 is a wasteful number, since it uses less digits than its factorization.

866779151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696321.

The product of its digits is 635040, while the sum is 50.

The square root of 866779151 is about 29441.1132771843. The cubic root of 866779151 is about 953.4607481935.

The spelling of 866779151 in words is "eight hundred sixty-six million, seven hundred seventy-nine thousand, one hundred fifty-one".