918821162079 has 12 divisors (see below), whose sum is σ = 1331715772296. Its totient is φ = 610456834032.

The previous prime is 918821162047. The next prime is 918821162081. The reversal of 918821162079 is 970261128819.

It is a happy number.

918821162079 is a `hidden beast` number, since 9 + 1 + 8 + 8 + 2 + 1 + 1 + 620 + 7 + 9 = 666.

It is not a de Polignac number, because 918821162079 - 2⁵ = 918821162047 is a prime.

It is a super-3 number, since 3×918821162079³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918821160079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174214497 + ... + 174219770.

It is an arithmetic number, because the mean of its divisors is an integer number (110976314358).

Almost surely, 2^918821162079 is an apocalyptic number.

918821162079 is a deficient number, since it is larger than the sum of its proper divisors (412894610217).

918821162079 is a wasteful number, since it uses less digits than its factorization.

918821162079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348434566 (or 348434563 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 918821162079 in words is "nine hundred eighteen billion, eight hundred twenty-one million, one hundred sixty-two thousand, seventy-nine".