1765381056 has 112 divisors (see below), whose sum is σ = 4851440640. Its totient is φ = 565954560.

The previous prime is 1765381049. The next prime is 1765381063. The reversal of 1765381056 is 6501835671.

It is an interprime number because it is at equal distance from previous prime (1765381049) and next prime (1765381063).

It is a junction number, because it is equal to n+sod(n) for n = 1765380999 and 1765381017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1064580 + ... + 1066236.

Almost surely, 2^1765381056 is an apocalyptic number.

1765381056 is a gapful number since it is divisible by the number (16) 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 1765381056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2425720320).

1765381056 is an abundant number, since it is smaller than the sum of its proper divisors (3086059584).

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

1765381056 is a wasteful number, since it uses less digits than its factorization.

1765381056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 1872 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The square root of 1765381056 is about 42016.4379261260. The cubic root of 1765381056 is about 1208.5913657916.

The spelling of 1765381056 in words is "one billion, seven hundred sixty-five million, three hundred eighty-one thousand, fifty-six".