1827800680 has 32 divisors (see below), whose sum is σ = 4116679200. Its totient is φ = 730386496.

The previous prime is 1827800677. The next prime is 1827800701. The reversal of 1827800680 is 860087281.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18339 + ... + 63181.

It is an arithmetic number, because the mean of its divisors is an integer number (128646225).

Almost surely, 2^1827800680 is an apocalyptic number.

1827800680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1827800680 is an abundant number, since it is smaller than the sum of its proper divisors (2288878520).

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

1827800680 is a wasteful number, since it uses less digits than its factorization.

1827800680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45873 (or 45869 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 1827800680 is about 42752.7856402364. The cubic root of 1827800680 is about 1222.6710000942.

The spelling of 1827800680 in words is "one billion, eight hundred twenty-seven million, eight hundred thousand, six hundred eighty".