1208853538506 has 32 divisors (see below), whose sum is σ = 2686417470720. Its totient is φ = 402939738432.

The previous prime is 1208853538483. The next prime is 1208853538507. The reversal of 1208853538506 is 6058353588021.

It is a happy number.

1208853538506 is a `hidden beast` number, since 1 + 2 + 0 + 8 + 8 + 53 + 538 + 50 + 6 = 666.

It is a super-2 number, since 2×1208853538506² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1208853538507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1721746 + ... + 2319938.

It is an arithmetic number, because the mean of its divisors is an integer number (83950545960).

Almost surely, 2^{1208853538506} is an apocalyptic number.

1208853538506 is an abundant number, since it is smaller than the sum of its proper divisors (1477563932214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1208853538506 is a wasteful number, since it uses less digits than its factorization.

1208853538506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635627 (or 635621 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 1208853538506 in words is "one trillion, two hundred eight billion, eight hundred fifty-three million, five hundred thirty-eight thousand, five hundred six".