851468388438 has 8 divisors (see below), whose sum is σ = 1702936776888. Its totient is φ = 283822796144.

The previous prime is 851468388437. The next prime is 851468388467. The reversal of 851468388438 is 834883864158.

851468388438 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

851468388438 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851468388437) 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, 70955699031 + ... + 70955699042.

It is an arithmetic number, because the mean of its divisors is an integer number (212867097111).

Almost surely, 2^851468388438 is an apocalyptic number.

851468388438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

851468388438 is a wasteful number, since it uses less digits than its factorization.

851468388438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141911398078.

The product of its digits is 141557760, while the sum is 66.

The spelling of 851468388438 in words is "eight hundred fifty-one billion, four hundred sixty-eight million, three hundred eighty-eight thousand, four hundred thirty-eight".