18354858007 has 8 divisors (see below), whose sum is σ = 18507786752. Its totient is φ = 18202060800.

The previous prime is 18354857957. The next prime is 18354858019. The reversal of 18354858007 is 70085845381.

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 18354858007 - 2⁷ = 18354857879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18354852007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258007 + ... + 321367.

It is an arithmetic number, because the mean of its divisors is an integer number (2313473344).

Almost surely, 2^18354858007 is an apocalyptic number.

18354858007 is a deficient number, since it is larger than the sum of its proper divisors (152928745).

18354858007 is a wasteful number, since it uses less digits than its factorization.

18354858007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65769.

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 18354858007 in words is "eighteen billion, three hundred fifty-four million, eight hundred fifty-eight thousand, seven".