18479024727 has 16 divisors (see below), whose sum is σ = 24754260960. Its totient is φ = 12261612032.

The previous prime is 18479024717. The next prime is 18479024743. The reversal of 18479024727 is 72742097481.

It is a cyclic number.

It is not a de Polignac number, because 18479024727 - 2¹² = 18479020631 is a prime.

It is a super-2 number, since 2×18479024727² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18479024727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18479024717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2944549 + ... + 2950817.

It is an arithmetic number, because the mean of its divisors is an integer number (1547141310).

Almost surely, 2^18479024727 is an apocalyptic number.

18479024727 is a deficient number, since it is larger than the sum of its proper divisors (6275236233).

18479024727 is a wasteful number, since it uses less digits than its factorization.

18479024727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10722.

The product of its (nonzero) digits is 1580544, while the sum is 51.

The spelling of 18479024727 in words is "eighteen billion, four hundred seventy-nine million, twenty-four thousand, seven hundred twenty-seven".