851966477022 has 16 divisors (see below), whose sum is σ = 1712495433600. Its totient is φ = 282561745752.

The previous prime is 851966477009. The next prime is 851966477069. The reversal of 851966477022 is 220774669158.

It is a happy number.

851966477022 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356768688 + ... + 356771075.

It is an arithmetic number, because the mean of its divisors is an integer number (107030964600).

Almost surely, 2^851966477022 is an apocalyptic number.

851966477022 is an abundant number, since it is smaller than the sum of its proper divisors (860528956578).

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

851966477022 is a wasteful number, since it uses less digits than its factorization.

851966477022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713539967.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The spelling of 851966477022 in words is "eight hundred fifty-one billion, nine hundred sixty-six million, four hundred seventy-seven thousand, twenty-two".