4518040191612 has 48 divisors (see below), whose sum is σ = 10608861537792. Its totient is φ = 1496500620160.

The previous prime is 4518040191593. The next prime is 4518040191671. The reversal of 4518040191612 is 2161910408154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172548 + ... + 3010955.

It is an arithmetic number, because the mean of its divisors is an integer number (221017948704).

Almost surely, 2^{4518040191612} is an apocalyptic number.

It is an amenable number.

4518040191612 is an abundant number, since it is smaller than the sum of its proper divisors (6090821346180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4518040191612 is a wasteful number, since it uses less digits than its factorization.

4518040191612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184258 (or 3184256 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

Adding to 4518040191612 its reverse (2161910408154), we get a palindrome (6679950599766).

The spelling of 4518040191612 in words is "four trillion, five hundred eighteen billion, forty million, one hundred ninety-one thousand, six hundred twelve".