1208853538512 has 80 divisors (see below), whose sum is σ = 3326838735360.
Its totient is φ = 377143883136.
The previous prime is 1208853538511. The next prime is 1208853538561. The reversal of 1208853538512 is 2158353588021.
It is a super-2 number, since 2×12088535385122 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1208853538511) 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, 7909228 + ... + 8060619.
It is an arithmetic number, because the mean of its divisors is an integer number (41585484192).
Almost surely, 21208853538512 is an apocalyptic number.
1208853538512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1208853538512 is an abundant number, since it is smaller than the sum of its proper divisors (2117985196848).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1208853538512 is a wasteful number, since it uses less digits than its factorization.
1208853538512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15969960 (or 15969954 counting only the distinct ones).
The product of its (nonzero) digits is 2304000, while the sum is 51.
The spelling of 1208853538512 in words is "one trillion, two hundred eight billion, eight hundred fifty-three million, five hundred thirty-eight thousand, five hundred twelve".