1518642711444 has 96 divisors (see below), whose sum is σ = 3671264894976. Its totient is φ = 488279151360.

The previous prime is 1518642711431. The next prime is 1518642711449. The reversal of 1518642711444 is 4441172468151.

It is a junction number, because it is equal to n+sod(n) for n = 1518642711393 and 1518642711402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1518642711449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137465529 + ... + 137476575.

It is an arithmetic number, because the mean of its divisors is an integer number (38242342656).

Almost surely, 2^{1518642711444} is an apocalyptic number.

It is an amenable number.

1518642711444 is an abundant number, since it is smaller than the sum of its proper divisors (2152622183532).

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

1518642711444 is a wasteful number, since it uses less digits than its factorization.

1518642711444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14605 (or 14603 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The spelling of 1518642711444 in words is "one trillion, five hundred eighteen billion, six hundred forty-two million, seven hundred eleven thousand, four hundred forty-four".