18534070905693 has 32 divisors (see below), whose sum is σ = 29121262571520. Its totient is φ = 10263602664000.

The previous prime is 18534070905689. The next prime is 18534070905737. The reversal of 18534070905693 is 39650907043581.

It is not a de Polignac number, because 18534070905693 - 2² = 18534070905689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18534070905893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47321653 + ... + 47711706.

It is an arithmetic number, because the mean of its divisors is an integer number (910039455360).

Almost surely, 2^{18534070905693} is an apocalyptic number.

It is an amenable number.

18534070905693 is a deficient number, since it is larger than the sum of its proper divisors (10587191665827).

18534070905693 is a wasteful number, since it uses less digits than its factorization.

18534070905693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95033657.

The product of its (nonzero) digits is 24494400, while the sum is 60.

The spelling of 18534070905693 in words is "eighteen trillion, five hundred thirty-four billion, seventy million, nine hundred five thousand, six hundred ninety-three".