17950449391024 has 20 divisors (see below), whose sum is σ = 35098069053520. Its totient is φ = 8892883183680.

The previous prime is 17950449391013. The next prime is 17950449391057. The reversal of 17950449391024 is 42019394405971.

It is a self number, because there is not a number n which added to its sum of digits gives 17950449391024.

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 3 ways as a sum of consecutive naturals, for example, 5146342692 + ... + 5146346179.

It is an arithmetic number, because the mean of its divisors is an integer number (1754903452676).

Almost surely, 2^{17950449391024} is an apocalyptic number.

It is an amenable number.

17950449391024 is a deficient number, since it is larger than the sum of its proper divisors (17147619662496).

17950449391024 is a wasteful number, since it uses less digits than its factorization.

17950449391024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10292688988 (or 10292688982 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 17950449391024 in words is "seventeen trillion, nine hundred fifty billion, four hundred forty-nine million, three hundred ninety-one thousand, twenty-four".