818786545201 has 8 divisors (see below), whose sum is σ = 825069621024. Its totient is φ = 812503966560.

The previous prime is 818786545141. The next prime is 818786545249. The reversal of 818786545201 is 102545687818.

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 818786545201 - 2²³ = 818778156593 is a prime.

It is a super-2 number, since 2×818786545201² (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 (818786545261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3610765 + ... + 3830821.

It is an arithmetic number, because the mean of its divisors is an integer number (103133702628).

Almost surely, 2^818786545201 is an apocalyptic number.

It is an amenable number.

818786545201 is a deficient number, since it is larger than the sum of its proper divisors (6283075823).

818786545201 is a wasteful number, since it uses less digits than its factorization.

818786545201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248591.

The product of its (nonzero) digits is 4300800, while the sum is 55.

The spelling of 818786545201 in words is "eight hundred eighteen billion, seven hundred eighty-six million, five hundred forty-five thousand, two hundred one".