18394229650504 has 16 divisors (see below), whose sum is σ = 34506538038000. Its totient is φ = 9192486173712.

The previous prime is 18394229650483. The next prime is 18394229650541. The reversal of 18394229650504 is 40505692249381.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578564554 + ... + 578596345.

It is an arithmetic number, because the mean of its divisors is an integer number (2156658627375).

Almost surely, 2^{18394229650504} is an apocalyptic number.

It is an amenable number.

18394229650504 is a deficient number, since it is larger than the sum of its proper divisors (16112308387496).

18394229650504 is a wasteful number, since it uses less digits than its factorization.

18394229650504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157162892 (or 1157162888 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 58.

The spelling of 18394229650504 in words is "eighteen trillion, three hundred ninety-four billion, two hundred twenty-nine million, six hundred fifty thousand, five hundred four".