18875829885 has 16 divisors (see below), whose sum is σ = 32946903360. Its totient is φ = 9151917440.

The previous prime is 18875829883. The next prime is 18875829937. The reversal of 18875829885 is 58892857881.

It is not a de Polignac number, because 18875829885 - 2¹ = 18875829883 is a prime.

It is a super-2 number, since 2×18875829885² (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 (18875829883) 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, 57199320 + ... + 57199649.

It is an arithmetic number, because the mean of its divisors is an integer number (2059181460).

Almost surely, 2^18875829885 is an apocalyptic number.

18875829885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18875829885 is a deficient number, since it is larger than the sum of its proper divisors (14071073475).

18875829885 is a wasteful number, since it uses less digits than its factorization.

18875829885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114398988.

The product of its digits is 103219200, while the sum is 69.

The spelling of 18875829885 in words is "eighteen billion, eight hundred seventy-five million, eight hundred twenty-nine thousand, eight hundred eighty-five".