1084863997668 has 96 divisors (see below), whose sum is σ = 2851584970752. Its totient is φ = 318026620800.

The previous prime is 1084863997661. The next prime is 1084863997691. The reversal of 1084863997668 is 8667993684801.

It is a self number, because there is not a number n which added to its sum of digits gives 1084863997668.

It is not an unprimeable number, because it can be changed into a prime (1084863997661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11586930 + ... + 11680182.

It is an arithmetic number, because the mean of its divisors is an integer number (29704010112).

Almost surely, 2^{1084863997668} 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 1084863997668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425792485376).

1084863997668 is an abundant number, since it is smaller than the sum of its proper divisors (1766720973084).

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

1084863997668 is a wasteful number, since it uses less digits than its factorization.

1084863997668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96145 (or 96143 counting only the distinct ones).

The product of its (nonzero) digits is 752467968, while the sum is 75.

The spelling of 1084863997668 in words is "one trillion, eighty-four billion, eight hundred sixty-three million, nine hundred ninety-seven thousand, six hundred sixty-eight".