1198800871236 has 120 divisors (see below), whose sum is σ = 3338609329440. Its totient is φ = 373786783488.

The previous prime is 1198800871231. The next prime is 1198800871271. The reversal of 1198800871236 is 6321780088911.

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 (1198800871231) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 230175 + ... + 1565433.

It is an arithmetic number, because the mean of its divisors is an integer number (27821744412).

Almost surely, 2^{1198800871236} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1198800871236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669304664720).

1198800871236 is an abundant number, since it is smaller than the sum of its proper divisors (2139808458204).

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

1198800871236 is a wasteful number, since it uses less digits than its factorization.

1198800871236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335455 (or 1335444 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 1198800871236 in words is "one trillion, one hundred ninety-eight billion, eight hundred million, eight hundred seventy-one thousand, two hundred thirty-six".