1838107884885 has 8 divisors (see below), whose sum is σ = 2940972615840. Its totient is φ = 980324205264.

The previous prime is 1838107884857. The next prime is 1838107884931. The reversal of 1838107884885 is 5884887018381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1838107884885 - 2⁵ = 1838107884853 is a prime.

It is a super-2 number, since 2×1838107884885² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 61270262815 + ... + 61270262844.

It is an arithmetic number, because the mean of its divisors is an integer number (367621576980).

Almost surely, 2^{1838107884885} is an apocalyptic number.

1838107884885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1838107884885 is a deficient number, since it is larger than the sum of its proper divisors (1102864730955).

1838107884885 is a wasteful number, since it uses less digits than its factorization.

1838107884885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122540525667.

The product of its (nonzero) digits is 110100480, while the sum is 69.

The spelling of 1838107884885 in words is "one trillion, eight hundred thirty-eight billion, one hundred seven million, eight hundred eighty-four thousand, eight hundred eighty-five".