918646414141 has 16 divisors (see below), whose sum is σ = 956669238000. Its totient is φ = 881373081600.

The previous prime is 918646414109. The next prime is 918646414229. The reversal of 918646414141 is 141414646819.

It can be written as a sum of positive squares in 8 ways, for example, as 411944465241 + 506701948900 = 641829^2 + 711830^2 .

It is a cyclic number.

It is not a de Polignac number, because 918646414141 - 2⁵ = 918646414109 is a prime.

It is a super-2 number, since 2×918646414141² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918646412141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13594245 + ... + 13661653.

It is an arithmetic number, because the mean of its divisors is an integer number (59791827375).

Almost surely, 2^918646414141 is an apocalyptic number.

It is an amenable number.

918646414141 is a deficient number, since it is larger than the sum of its proper divisors (38022823859).

918646414141 is a wasteful number, since it uses less digits than its factorization.

918646414141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72960.

The product of its digits is 663552, while the sum is 49.

The spelling of 918646414141 in words is "nine hundred eighteen billion, six hundred forty-six million, four hundred fourteen thousand, one hundred forty-one".