1808480021139 has 24 divisors (see below), whose sum is σ = 2849844349872. Its totient is φ = 1096003014720.

The previous prime is 1808480021123. The next prime is 1808480021147. The reversal of 1808480021139 is 9311200848081.

1808480021139 is a `hidden beast` number, since 18 + 0 + 8 + 480 + 0 + 21 + 139 = 666.

It is not a de Polignac number, because 1808480021139 - 2⁴ = 1808480021123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1808480021094 and 1808480021103.

It is not an unprimeable number, because it can be changed into a prime (1808480025139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2100217 + ... + 2833349.

It is an arithmetic number, because the mean of its divisors is an integer number (118743514578).

Almost surely, 2^{1808480021139} is an apocalyptic number.

1808480021139 is a deficient number, since it is larger than the sum of its proper divisors (1041364328733).

1808480021139 is a wasteful number, since it uses less digits than its factorization.

1808480021139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758067 (or 758064 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 1808480021139 in words is "one trillion, eight hundred eight billion, four hundred eighty million, twenty-one thousand, one hundred thirty-nine".