18529274564 has 24 divisors (see below), whose sum is σ = 32997355776. Its totient is φ = 9102860000.

The previous prime is 18529274557. The next prime is 18529274611. The reversal of 18529274564 is 46547292581.

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, 122132 + ... + 227979.

It is an arithmetic number, because the mean of its divisors is an integer number (1374889824).

Almost surely, 2^18529274564 is an apocalyptic number.

It is an amenable number.

18529274564 is a deficient number, since it is larger than the sum of its proper divisors (14468081212).

18529274564 is a wasteful number, since it uses less digits than its factorization.

18529274564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350347 (or 350345 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 53.

The spelling of 18529274564 in words is "eighteen billion, five hundred twenty-nine million, two hundred seventy-four thousand, five hundred sixty-four".