18494212976345 has 8 divisors (see below), whose sum is σ = 22315669139400. Its totient is φ = 14713628002560.

The previous prime is 18494212976279. The next prime is 18494212976381. The reversal of 18494212976345 is 54367921249481.

It can be written as a sum of positive squares in 4 ways, for example, as 146251940041 + 18347961036304 = 382429^2 + 4283452^2 .

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

It is not a de Polignac number, because 18494212976345 - 2³⁸ = 18219335069401 is a prime.

It is a super-2 number, since 2×18494212976345² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10217796320 + ... + 10217798129.

It is an arithmetic number, because the mean of its divisors is an integer number (2789458642425).

Almost surely, 2^{18494212976345} is an apocalyptic number.

It is an amenable number.

18494212976345 is a deficient number, since it is larger than the sum of its proper divisors (3821456163055).

18494212976345 is a wasteful number, since it uses less digits than its factorization.

18494212976345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20435594635.

The product of its digits is 104509440, while the sum is 65.

The spelling of 18494212976345 in words is "eighteen trillion, four hundred ninety-four billion, two hundred twelve million, nine hundred seventy-six thousand, three hundred forty-five".