866119490 has 32 divisors (see below), whose sum is σ = 1570440960. Its totient is φ = 343920064.

The previous prime is 866119433. The next prime is 866119493. The reversal of 866119490 is 94911668.

It is not an unprimeable number, because it can be changed into a prime (866119493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338347 + ... + 1338993.

It is an arithmetic number, because the mean of its divisors is an integer number (49076280).

Almost surely, 2^866119490 is an apocalyptic number.

866119490 is a deficient number, since it is larger than the sum of its proper divisors (704321470).

866119490 is a wasteful number, since it uses less digits than its factorization.

866119490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 866119490 is about 29429.9080868425. The cubic root of 866119490 is about 953.2188101735.

The spelling of 866119490 in words is "eight hundred sixty-six million, one hundred nineteen thousand, four hundred ninety".