1097898779200 has 168 divisors, whose sum is σ = 2727915804000. Its totient is φ = 434875392000.

The previous prime is 1097898779189. The next prime is 1097898779203. The reversal of 1097898779200 is 29778987901.

It is not an unprimeable number, because it can be changed into a prime (1097898779203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271017175 + ... + 271021225.

Almost surely, 2^{1097898779200} is an apocalyptic number.

1097898779200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1097898779200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1363957902000).

1097898779200 is an abundant number, since it is smaller than the sum of its proper divisors (1630017024800).

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

1097898779200 is a wasteful number, since it uses less digits than its factorization.

1097898779200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5670 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 67.

The spelling of 1097898779200 in words is "one trillion, ninety-seven billion, eight hundred ninety-eight million, seven hundred seventy-nine thousand, two hundred".