1194779987272 has 32 divisors (see below), whose sum is σ = 2312686010880. Its totient is φ = 578067194880.

The previous prime is 1194779987221. The next prime is 1194779987327. The reversal of 1194779987272 is 2727899774911.

It is a junction number, because it is equal to n+sod(n) for n = 1194779987195 and 1194779987204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2611368 + ... + 3034600.

It is an arithmetic number, because the mean of its divisors is an integer number (72271437840).

Almost surely, 2^{1194779987272} is an apocalyptic number.

It is an amenable number.

1194779987272 is a deficient number, since it is larger than the sum of its proper divisors (1117906023608).

1194779987272 is a wasteful number, since it uses less digits than its factorization.

1194779987272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434653 (or 434649 counting only the distinct ones).

The product of its digits is 224042112, while the sum is 73.

The spelling of 1194779987272 in words is "one trillion, one hundred ninety-four billion, seven hundred seventy-nine million, nine hundred eighty-seven thousand, two hundred seventy-two".