1213608015850 has 48 divisors (see below), whose sum is σ = 2314012331232. Its totient is φ = 473361744960.

The previous prime is 1213608015817. The next prime is 1213608015899. The reversal of 1213608015850 is 585108063121.

It is a happy number.

It is a super-3 number, since 3×1213608015850³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 972852 + ... + 1836751.

It is an arithmetic number, because the mean of its divisors is an integer number (48208590234).

Almost surely, 2^{1213608015850} is an apocalyptic number.

1213608015850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213608015850 is a deficient number, since it is larger than the sum of its proper divisors (1100404315382).

1213608015850 is a wasteful number, since it uses less digits than its factorization.

1213608015850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809831 (or 2809826 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 1213608015850 in words is "one trillion, two hundred thirteen billion, six hundred eight million, fifteen thousand, eight hundred fifty".