18614874679447 has 8 divisors (see below), whose sum is σ = 18743210362800. Its totient is φ = 18486809462784.

The previous prime is 18614874679411. The next prime is 18614874679493. The reversal of 18614874679447 is 74497647841681.

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 18614874679447 - 2⁷ = 18614874679319 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 (18614874619447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67478548 + ... + 67753849.

It is an arithmetic number, because the mean of its divisors is an integer number (2342901295350).

Almost surely, 2^{18614874679447} is an apocalyptic number.

18614874679447 is a deficient number, since it is larger than the sum of its proper divisors (128335683353).

18614874679447 is a wasteful number, since it uses less digits than its factorization.

18614874679447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135233345.

The product of its digits is 1820786688, while the sum is 76.

The spelling of 18614874679447 in words is "eighteen trillion, six hundred fourteen billion, eight hundred seventy-four million, six hundred seventy-nine thousand, four hundred forty-seven".