918641819146 has 16 divisors (see below), whose sum is σ = 1401035891976. Its totient is φ = 451690177536.

The previous prime is 918641819033. The next prime is 918641819149. The reversal of 918641819146 is 641918146819.

It can be written as a sum of positive squares in 4 ways, for example, as 679363335225 + 239278483921 = 824235^2 + 489161^2 .

It is not an unprimeable number, because it can be changed into a prime (918641819149) 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, 15050011 + ... + 15110926.

Almost surely, 2^918641819146 is an apocalyptic number.

918641819146 is a deficient number, since it is larger than the sum of its proper divisors (482394072830).

918641819146 is a wasteful number, since it uses less digits than its factorization.

918641819146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30161193.

The product of its digits is 2985984, while the sum is 58.

The spelling of 918641819146 in words is "nine hundred eighteen billion, six hundred forty-one million, eight hundred nineteen thousand, one hundred forty-six".