46444188218 has 4 divisors (see below), whose sum is σ = 69666282330. Its totient is φ = 23222094108.

The previous prime is 46444188211. The next prime is 46444188269. The reversal of 46444188218 is 81288144464.

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

It can be written as a sum of positive squares in only one way, i.e., 24502580089 + 21941608129 = 156533^2 + 148127^2 .

It is not an unprimeable number, because it can be changed into a prime (46444188211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611047053 + ... + 11611047056.

Almost surely, 2^46444188218 is an apocalyptic number.

46444188218 is a deficient number, since it is larger than the sum of its proper divisors (23222094112).

46444188218 is a wasteful number, since it uses less digits than its factorization.

46444188218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23222094111.

The product of its digits is 1572864, while the sum is 50.

The spelling of 46444188218 in words is "forty-six billion, four hundred forty-four million, one hundred eighty-eight thousand, two hundred eighteen".