18152851389 has 16 divisors (see below), whose sum is σ = 25711435200. Its totient is φ = 11359771776.

The previous prime is 18152851331. The next prime is 18152851429. The reversal of 18152851389 is 98315825181.

It is not a de Polignac number, because 18152851389 - 2¹⁹ = 18152327101 is a prime.

It is a super-2 number, since 2×18152851389² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18152851589) 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, 1454664 + ... + 1467089.

It is an arithmetic number, because the mean of its divisors is an integer number (1606964700).

Almost surely, 2^18152851389 is an apocalyptic number.

18152851389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18152851389 is a deficient number, since it is larger than the sum of its proper divisors (7558583811).

18152851389 is a wasteful number, since it uses less digits than its factorization.

18152851389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921884.

The product of its digits is 691200, while the sum is 51.

The spelling of 18152851389 in words is "eighteen billion, one hundred fifty-two million, eight hundred fifty-one thousand, three hundred eighty-nine".