866457051 has 8 divisors (see below), whose sum is σ = 1158921744. Its totient is φ = 575815200.

The previous prime is 866457049. The next prime is 866457089. The reversal of 866457051 is 150754668.

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

It is not a de Polignac number, because 866457051 - 2¹ = 866457049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866456994 and 866457012.

It is not an unprimeable number, because it can be changed into a prime (866457001) 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, 454600 + ... + 456501.

It is an arithmetic number, because the mean of its divisors is an integer number (144865218).

Almost surely, 2^866457051 is an apocalyptic number.

866457051 is a deficient number, since it is larger than the sum of its proper divisors (292464693).

866457051 is a wasteful number, since it uses less digits than its factorization.

866457051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911421.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 866457051 is about 29435.6425273851. The cubic root of 866457051 is about 953.3426297717.

The spelling of 866457051 in words is "eight hundred sixty-six million, four hundred fifty-seven thousand, fifty-one".