18734642383705 has 16 divisors (see below), whose sum is σ = 22817319134400. Its totient is φ = 14763885694272.

The previous prime is 18734642383657. The next prime is 18734642383741. The reversal of 18734642383705 is 50738324643781.

It is a cyclic number.

It is not a de Polignac number, because 18734642383705 - 2¹⁵ = 18734642350937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57826627 + ... + 58149703.

It is an arithmetic number, because the mean of its divisors is an integer number (1426082445900).

Almost surely, 2^{18734642383705} is an apocalyptic number.

It is an amenable number.

18734642383705 is a deficient number, since it is larger than the sum of its proper divisors (4082676750695).

18734642383705 is a wasteful number, since it uses less digits than its factorization.

18734642383705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496248.

The product of its (nonzero) digits is 81285120, while the sum is 61.

The spelling of 18734642383705 in words is "eighteen trillion, seven hundred thirty-four billion, six hundred forty-two million, three hundred eighty-three thousand, seven hundred five".