3781778580 has 72 divisors (see below), whose sum is σ = 11476456992. Its totient is φ = 1008029376.

The previous prime is 3781778569. The next prime is 3781778659. The reversal of 3781778580 is 858771873.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707799 + ... + 713121.

It is an arithmetic number, because the mean of its divisors is an integer number (159395236).

Almost surely, 2^3781778580 is an apocalyptic number.

3781778580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3781778580 is an abundant number, since it is smaller than the sum of its proper divisors (7694678412).

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

3781778580 is a wasteful number, since it uses less digits than its factorization.

3781778580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285 (or 9280 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 54.

The square root of 3781778580 is about 61496.1671976392. The cubic root of 3781778580 is about 1557.9925114566.

The spelling of 3781778580 in words is "three billion, seven hundred eighty-one million, seven hundred seventy-eight thousand, five hundred eighty".