766825851 has 32 divisors (see below), whose sum is σ = 1212945408. Its totient is φ = 425571840.

The previous prime is 766825841. The next prime is 766825861. The reversal of 766825851 is 158528667.

It is an interprime number because it is at equal distance from previous prime (766825841) and next prime (766825861).

It is not a de Polignac number, because 766825851 - 2¹⁰ = 766824827 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 766825851.

It is not an unprimeable number, because it can be changed into a prime (766825841) 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 31 ways as a sum of consecutive naturals, for example, 2286 + ... + 39228.

It is an arithmetic number, because the mean of its divisors is an integer number (37904544).

Almost surely, 2^766825851 is an apocalyptic number.

766825851 is a deficient number, since it is larger than the sum of its proper divisors (446119557).

766825851 is a wasteful number, since it uses less digits than its factorization.

766825851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37011.

The product of its digits is 806400, while the sum is 48.

The square root of 766825851 is about 27691.6205917964. The cubic root of 766825851 is about 915.3044667444.

The spelling of 766825851 in words is "seven hundred sixty-six million, eight hundred twenty-five thousand, eight hundred fifty-one".