1080699777108 has 432 divisors, whose sum is σ = 3536157328704. Its totient is φ = 276166195200.

The previous prime is 1080699777041. The next prime is 1080699777239. The reversal of 1080699777108 is 8017779960801.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 47699583 + ... + 47722233.

It is an arithmetic number, because the mean of its divisors is an integer number (8185549372).

Almost surely, 2^{1080699777108} is an apocalyptic number.

1080699777108 is a gapful number since it is divisible by the number (18) 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 1080699777108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1768078664352).

1080699777108 is an abundant number, since it is smaller than the sum of its proper divisors (2455457551596).

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

1080699777108 is a wasteful number, since it uses less digits than its factorization.

1080699777108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22772 (or 22760 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 63.

The spelling of 1080699777108 in words is "one trillion, eighty billion, six hundred ninety-nine million, seven hundred seventy-seven thousand, one hundred eight".