4981662418 has 4 divisors (see below), whose sum is σ = 7472493630. Its totient is φ = 2490831208.

The previous prime is 4981662409. The next prime is 4981662419. The reversal of 4981662418 is 8142661894.

It is a happy number.

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., 2857650849 + 2124011569 = 53457^2 + 46087^2 .

It is not an unprimeable number, because it can be changed into a prime (4981662419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245415603 + ... + 1245415606.

Almost surely, 2^4981662418 is an apocalyptic number.

4981662418 is a deficient number, since it is larger than the sum of its proper divisors (2490831212).

4981662418 is a wasteful number, since it uses less digits than its factorization.

4981662418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490831211.

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

The square root of 4981662418 is about 70580.8927260062. The cubic root of 4981662418 is about 1707.8829309216.

The spelling of 4981662418 in words is "four billion, nine hundred eighty-one million, six hundred sixty-two thousand, four hundred eighteen".