18282778282 has 16 divisors (see below), whose sum is σ = 29529515520. Its totient is φ = 8457834688.

The previous prime is 18282778277. The next prime is 18282778321. The reversal of 18282778282 is 28287728281.

It is a super-3 number, since 3×18282778282³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4555018 + ... + 4559029.

It is an arithmetic number, because the mean of its divisors is an integer number (1845594720).

Almost surely, 2^18282778282 is an apocalyptic number.

18282778282 is a deficient number, since it is larger than the sum of its proper divisors (11246737238).

18282778282 is a wasteful number, since it uses less digits than its factorization.

18282778282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9114125.

The product of its digits is 3211264, while the sum is 55.

The spelling of 18282778282 in words is "eighteen billion, two hundred eighty-two million, seven hundred seventy-eight thousand, two hundred eighty-two".