845644104372 has 24 divisors (see below), whose sum is σ = 1973460837600. Its totient is φ = 281839759456.

The previous prime is 845644104359. The next prime is 845644104377. The reversal of 845644104372 is 273401446548.

It is a super-2 number, since 2×845644104372² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845644104377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5116347 + ... + 5279042.

It is an arithmetic number, because the mean of its divisors is an integer number (82227534900).

Almost surely, 2^845644104372 is an apocalyptic number.

It is an amenable number.

845644104372 is an abundant number, since it is smaller than the sum of its proper divisors (1127816733228).

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

845644104372 is a wasteful number, since it uses less digits than its factorization.

845644104372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10402175 (or 10402173 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 845644104372 in words is "eight hundred forty-five billion, six hundred forty-four million, one hundred four thousand, three hundred seventy-two".