918834727438819 has 4 divisors (see below), whose sum is σ = 931421504527096. Its totient is φ = 906247950350544.

The previous prime is 918834727438769. The next prime is 918834727438829.

918834727438819 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 918834727438819 - 2³⁵ = 918800367700451 is a prime.

It is a super-2 number, since 2×918834727438819² (a number of 31 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (918834727438829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6293388544029 + ... + 6293388544174.

It is an arithmetic number, because the mean of its divisors is an integer number (232855376131774).

Almost surely, 2^{918834727438819} is an apocalyptic number.

918834727438819 is a deficient number, since it is larger than the sum of its proper divisors (12586777088277).

918834727438819 is a wasteful number, since it uses less digits than its factorization.

918834727438819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12586777088276.

The product of its digits is 4682022912, while the sum is 82.

The spelling of 918834727438819 in words is "nine hundred eighteen trillion, eight hundred thirty-four billion, seven hundred twenty-seven million, four hundred thirty-eight thousand, eight hundred nineteen".