1081770000 has 200 divisors, whose sum is σ = 3535193376. Its totient is φ = 284928000.

The previous prime is 1081769981. The next prime is 1081770013. The reversal of 1081770000 is 771801.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3209832 + ... + 3210168.

Almost surely, 2^1081770000 is an apocalyptic number.

1081770000 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 1081770000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1767596688).

1081770000 is an abundant number, since it is smaller than the sum of its proper divisors (2453423376).

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

1081770000 is a wasteful number, since it uses less digits than its factorization.

1081770000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 24.

The square root of 1081770000 is about 32890.2721180595. The cubic root of 1081770000 is about 1026.5457542056.

The spelling of 1081770000 in words is "one billion, eighty-one million, seven hundred seventy thousand".