845287817137 has 8 divisors (see below), whose sum is σ = 845628106752. Its totient is φ = 844947600000.

The previous prime is 845287817111. The next prime is 845287817149. The reversal of 845287817137 is 731718782548.

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

It is a cyclic number.

It is not a de Polignac number, because 845287817137 - 2¹¹ = 845287815089 is a prime.

It is a super-2 number, since 2×845287817137² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845287917137) 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, 36601608 + ... + 36624694.

It is an arithmetic number, because the mean of its divisors is an integer number (105703513344).

Almost surely, 2^845287817137 is an apocalyptic number.

It is an amenable number.

845287817137 is a deficient number, since it is larger than the sum of its proper divisors (340289615).

845287817137 is a wasteful number, since it uses less digits than its factorization.

845287817137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36239.

The product of its digits is 21073920, while the sum is 61.

The spelling of 845287817137 in words is "eight hundred forty-five billion, two hundred eighty-seven million, eight hundred seventeen thousand, one hundred thirty-seven".