18940526104 has 16 divisors (see below), whose sum is σ = 35523608400. Its totient is φ = 9467563872.

The previous prime is 18940526089. The next prime is 18940526131. The reversal of 18940526104 is 40162504981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307419 + ... + 363850.

It is an arithmetic number, because the mean of its divisors is an integer number (2220225525).

Almost surely, 2^18940526104 is an apocalyptic number.

It is an amenable number.

18940526104 is a deficient number, since it is larger than the sum of its proper divisors (16583082296).

18940526104 is a wasteful number, since it uses less digits than its factorization.

18940526104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674802 (or 674798 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 18940526104 in words is "eighteen billion, nine hundred forty million, five hundred twenty-six thousand, one hundred four".