18676123508450 has 24 divisors (see below), whose sum is σ = 34798426188240. Its totient is φ = 7457366293200.

The previous prime is 18676123508447. The next prime is 18676123508491. The reversal of 18676123508450 is 5480532167681.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 327048920 + ... + 327106019.

It is an arithmetic number, because the mean of its divisors is an integer number (1449934424510).

Almost surely, 2^{18676123508450} is an apocalyptic number.

18676123508450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18676123508450 is a deficient number, since it is larger than the sum of its proper divisors (16122302679790).

18676123508450 is a wasteful number, since it uses less digits than its factorization.

18676123508450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654155522 (or 654155517 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 18676123508450 in words is "eighteen trillion, six hundred seventy-six billion, one hundred twenty-three million, five hundred eight thousand, four hundred fifty".