1838872200385 has 16 divisors (see below), whose sum is σ = 2407278582720. Its totient is φ = 1337346210240.

The previous prime is 1838872200307. The next prime is 1838872200397. The reversal of 1838872200385 is 5830022788381.

It is not a de Polignac number, because 1838872200385 - 2²⁷ = 1838737982657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 7166314 + ... + 7418476.

It is an arithmetic number, because the mean of its divisors is an integer number (150454911420).

Almost surely, 2^{1838872200385} is an apocalyptic number.

It is an amenable number.

1838872200385 is a deficient number, since it is larger than the sum of its proper divisors (568406382335).

1838872200385 is a wasteful number, since it uses less digits than its factorization.

1838872200385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384768.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 1838872200385 in words is "one trillion, eight hundred thirty-eight billion, eight hundred seventy-two million, two hundred thousand, three hundred eighty-five".