851541436 has 12 divisors (see below), whose sum is σ = 1492811320. Its totient is φ = 425023920.

The previous prime is 851541419. The next prime is 851541451. The reversal of 851541436 is 634145158.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 851541395 and 851541404.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 184131 + ... + 188698.

Almost surely, 2^851541436 is an apocalyptic number.

It is an amenable number.

851541436 is a deficient number, since it is larger than the sum of its proper divisors (641269884).

851541436 is a wasteful number, since it uses less digits than its factorization.

851541436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373404 (or 373402 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 851541436 is about 29181.1829095395. The cubic root of 851541436 is about 947.8405005625.

The spelling of 851541436 in words is "eight hundred fifty-one million, five hundred forty-one thousand, four hundred thirty-six".