851806631430741 has 48 divisors (see below), whose sum is σ = 1438660039147200. Its totient is φ = 445227422556672.

The previous prime is 851806631430731. The next prime is 851806631430761. The reversal of 851806631430741 is 147034136608158.

It is not a de Polignac number, because 851806631430741 - 2⁵ = 851806631430709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851806631430731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5258179380 + ... + 5258341373.

It is an arithmetic number, because the mean of its divisors is an integer number (29972084148900).

Almost surely, 2^{851806631430741} is an apocalyptic number.

It is an amenable number.

851806631430741 is a deficient number, since it is larger than the sum of its proper divisors (586853407716459).

851806631430741 is a wasteful number, since it uses less digits than its factorization.

851806631430741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10516520818 (or 10516520811 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 851806631430741 in words is "eight hundred fifty-one trillion, eight hundred six billion, six hundred thirty-one million, four hundred thirty thousand, seven hundred forty-one".