18247671028 has 48 divisors (see below), whose sum is σ = 32763153024. Its totient is φ = 8889978240.

The previous prime is 18247670999. The next prime is 18247671031. The reversal of 18247671028 is 82017674281.

It is a super-2 number, since 2×18247671028² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19268451 + ... + 19269397.

It is an arithmetic number, because the mean of its divisors is an integer number (682565688).

Almost surely, 2^18247671028 is an apocalyptic number.

It is an amenable number.

18247671028 is a deficient number, since it is larger than the sum of its proper divisors (14515481996).

18247671028 is a wasteful number, since it uses less digits than its factorization.

18247671028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 46.

The spelling of 18247671028 in words is "eighteen billion, two hundred forty-seven million, six hundred seventy-one thousand, twenty-eight".