18342540705 has 16 divisors (see below), whose sum is σ = 29368215360. Its totient is φ = 9775971648.

The previous prime is 18342540683. The next prime is 18342540709. The reversal of 18342540705 is 50704524381.

It is not a de Polignac number, because 18342540705 - 2⁵ = 18342540673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18342540709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397182 + ... + 440951.

It is an arithmetic number, because the mean of its divisors is an integer number (1835513460).

Almost surely, 2^18342540705 is an apocalyptic number.

18342540705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18342540705 is a deficient number, since it is larger than the sum of its proper divisors (11025674655).

18342540705 is a wasteful number, since it uses less digits than its factorization.

18342540705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839600.

The product of its (nonzero) digits is 134400, while the sum is 39.

The spelling of 18342540705 in words is "eighteen billion, three hundred forty-two million, five hundred forty thousand, seven hundred five".