891856116192 has 24 divisors (see below), whose sum is σ = 2341122305256. Its totient is φ = 297285372032.

The previous prime is 891856116187. The next prime is 891856116227. The reversal of 891856116192 is 291611658198.

891856116192 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 tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4645083843 + ... + 4645084034.

It is an arithmetic number, because the mean of its divisors is an integer number (97546762719).

Almost surely, 2^891856116192 is an apocalyptic number.

It is an amenable number.

891856116192 is an abundant number, since it is smaller than the sum of its proper divisors (1449266189064).

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

891856116192 is a wasteful number, since it uses less digits than its factorization.

891856116192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290167890 (or 9290167882 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 57.

The spelling of 891856116192 in words is "eight hundred ninety-one billion, eight hundred fifty-six million, one hundred sixteen thousand, one hundred ninety-two".