18646345048405 has 8 divisors (see below), whose sum is σ = 23553277956000. Its totient is φ = 14131966773456.

The previous prime is 18646345048393. The next prime is 18646345048411. The reversal of 18646345048405 is 50484054364681.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18646345048405 - 2³¹ = 18644197564757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18646345048405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98138658055 + ... + 98138658244.

It is an arithmetic number, because the mean of its divisors is an integer number (2944159744500).

Almost surely, 2^{18646345048405} is an apocalyptic number.

It is an amenable number.

18646345048405 is a deficient number, since it is larger than the sum of its proper divisors (4906932907595).

18646345048405 is a wasteful number, since it uses less digits than its factorization.

18646345048405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196277316323.

The product of its (nonzero) digits is 44236800, while the sum is 58.

The spelling of 18646345048405 in words is "eighteen trillion, six hundred forty-six billion, three hundred forty-five million, forty-eight thousand, four hundred five".