845975189808 has 180 divisors, whose sum is σ = 2755181250120. Its totient is φ = 241611890688.

The previous prime is 845975189737. The next prime is 845975189881. The reversal of 845975189808 is 808981579548.

845975189808 is a `hidden beast` number, since 8 + 459 + 75 + 18 + 98 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18951291 + ... + 18995877.

Almost surely, 2^845975189808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845975189808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377590625060).

845975189808 is an abundant number, since it is smaller than the sum of its proper divisors (1909206060312).

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

845975189808 is a wasteful number, since it uses less digits than its factorization.

845975189808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47304 (or 47288 counting only the distinct ones).

The product of its (nonzero) digits is 232243200, while the sum is 72.

The spelling of 845975189808 in words is "eight hundred forty-five billion, nine hundred seventy-five million, one hundred eighty-nine thousand, eight hundred eight".