18465911542 has 16 divisors (see below), whose sum is σ = 29842978032. Its totient is φ = 8518891680.

The previous prime is 18465911533. The next prime is 18465911587. The reversal of 18465911542 is 24511956481.

It is a junction number, because it is equal to n+sod(n) for n = 18465911492 and 18465911501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100584 + ... + 216907.

It is an arithmetic number, because the mean of its divisors is an integer number (1865186127).

Almost surely, 2^18465911542 is an apocalyptic number.

18465911542 is a deficient number, since it is larger than the sum of its proper divisors (11377066490).

18465911542 is a wasteful number, since it uses less digits than its factorization.

18465911542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319743.

The product of its digits is 345600, while the sum is 46.

The spelling of 18465911542 in words is "eighteen billion, four hundred sixty-five million, nine hundred eleven thousand, five hundred forty-two".