18272510747 has 16 divisors (see below), whose sum is σ = 19443608832. Its totient is φ = 17135284320.

The previous prime is 18272510723. The next prime is 18272510779. The reversal of 18272510747 is 74701527281.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18272510747 - 2⁸ = 18272510491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18272510698 and 18272510707.

It is not an unprimeable number, because it can be changed into a prime (18272510447) 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, 297053 + ... + 353249.

It is an arithmetic number, because the mean of its divisors is an integer number (1215225552).

Almost surely, 2^18272510747 is an apocalyptic number.

18272510747 is a deficient number, since it is larger than the sum of its proper divisors (1171098085).

18272510747 is a wasteful number, since it uses less digits than its factorization.

18272510747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56498.

The product of its (nonzero) digits is 219520, while the sum is 44.

The spelling of 18272510747 in words is "eighteen billion, two hundred seventy-two million, five hundred ten thousand, seven hundred forty-seven".