1213815942196 has 48 divisors (see below), whose sum is σ = 2497222179648. Its totient is φ = 508949625600.

The previous prime is 1213815942167. The next prime is 1213815942221. The reversal of 1213815942196 is 6912495183121.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

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, 132816 + ... + 1563736.

It is an arithmetic number, because the mean of its divisors is an integer number (52025462076).

Almost surely, 2^{1213815942196} is an apocalyptic number.

It is an amenable number.

1213815942196 is an abundant number, since it is smaller than the sum of its proper divisors (1283406237452).

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

1213815942196 is a wasteful number, since it uses less digits than its factorization.

1213815942196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432432 (or 1432430 counting only the distinct ones).

The product of its digits is 933120, while the sum is 52.

The spelling of 1213815942196 in words is "one trillion, two hundred thirteen billion, eight hundred fifteen million, nine hundred forty-two thousand, one hundred ninety-six".