851042026 has 4 divisors (see below), whose sum is σ = 1276563042. Its totient is φ = 425521012.

The previous prime is 851042011. The next prime is 851042029. The reversal of 851042026 is 620240158.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 602948025 + 248094001 = 24555^2 + 15751^2 .

It is a junction number, because it is equal to n+sod(n) for n = 851041985 and 851042003.

It is not an unprimeable number, because it can be changed into a prime (851042029) 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 as a sum of consecutive naturals, namely, 212760505 + ... + 212760508.

Almost surely, 2^851042026 is an apocalyptic number.

851042026 is a deficient number, since it is larger than the sum of its proper divisors (425521016).

851042026 is a wasteful number, since it uses less digits than its factorization.

851042026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425521015.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 851042026 is about 29172.6245990998. The cubic root of 851042026 is about 947.6551685778.

The spelling of 851042026 in words is "eight hundred fifty-one million, forty-two thousand, twenty-six".