768481858 has 8 divisors (see below), whose sum is σ = 1152878220. Its totient is φ = 384189120.

The previous prime is 768481849. The next prime is 768481859. The reversal of 768481858 is 858184867.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 726140809 + 42341049 = 26947^2 + 6507^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 768481799 and 768481808.

It is not an unprimeable number, because it can be changed into a prime (768481859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3483 + ... + 39358.

Almost surely, 2^768481858 is an apocalyptic number.

768481858 is a deficient number, since it is larger than the sum of its proper divisors (384396362).

768481858 is a wasteful number, since it uses less digits than its factorization.

768481858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51812.

The product of its digits is 3440640, while the sum is 55.

The square root of 768481858 is about 27721.5053343068. The cubic root of 768481858 is about 915.9628782081.

The spelling of 768481858 in words is "seven hundred sixty-eight million, four hundred eighty-one thousand, eight hundred fifty-eight".