1018519444652 has 24 divisors (see below), whose sum is σ = 1809266586624. Its totient is φ = 501588272592.

The previous prime is 1018519444639. The next prime is 1018519444673. The reversal of 1018519444652 is 2564449158101.

It is a super-2 number, since 2×1018519444652² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1018519444652.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1667813 + ... + 2195139.

It is an arithmetic number, because the mean of its divisors is an integer number (75386107776).

Almost surely, 2^{1018519444652} is an apocalyptic number.

It is an amenable number.

1018519444652 is a deficient number, since it is larger than the sum of its proper divisors (790747141972).

1018519444652 is a wasteful number, since it uses less digits than its factorization.

1018519444652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534605 (or 534603 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 1018519444652 in words is "one trillion, eighteen billion, five hundred nineteen million, four hundred forty-four thousand, six hundred fifty-two".