1861096608 has 192 divisors, whose sum is σ = 6255083520. Its totient is φ = 527337216.

The previous prime is 1861096591. The next prime is 1861096621. The reversal of 1861096608 is 8066901681.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 766885 + ... + 769307.

It is an arithmetic number, because the mean of its divisors is an integer number (32578560).

Almost surely, 2^1861096608 is an apocalyptic number.

1861096608 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 1861096608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3127541760).

1861096608 is an abundant number, since it is smaller than the sum of its proper divisors (4393986912).

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

1861096608 is a wasteful number, since it uses less digits than its factorization.

1861096608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 1861096608 is about 43140.4289269358. The cubic root of 1861096608 is about 1230.0505868546.

The spelling of 1861096608 in words is "one billion, eight hundred sixty-one million, ninety-six thousand, six hundred eight".