1800000010 has 32 divisors (see below), whose sum is σ = 3412513152. Its totient is φ = 682249920.

The previous prime is 1799999977. The next prime is 1800000011. The reversal of 1800000010 is 100000081.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1800000011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11961 + ... + 61180.

It is an arithmetic number, because the mean of its divisors is an integer number (106641036).

Almost surely, 2^1800000010 is an apocalyptic number.

1800000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1800000010 is a deficient number, since it is larger than the sum of its proper divisors (1612513142).

1800000010 is a wasteful number, since it uses less digits than its factorization.

1800000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73278.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1800000010 is about 42426.4069890440. The cubic root of 1800000010 is about 1216.4404013673.

Adding to 1800000010 its reverse (100000081), we get a palindrome (1900000091).

The spelling of 1800000010 in words is "one billion, eight hundred million, ten", and thus it is an aban number.