1481807556 has 18 divisors (see below), whose sum is σ = 3745680302. Its totient is φ = 493935840.

The previous prime is 1481807501. The next prime is 1481807573. The reversal of 1481807556 is 6557081841.

1481807556 is a `hidden beast` number, since 14 + 8 + 1 + 80 + 7 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 773396100 + 708411456 = 27810^2 + 26616^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20580625 + ... + 20580696.

Almost surely, 2^1481807556 is an apocalyptic number.

It is an amenable number.

1481807556 is an abundant number, since it is smaller than the sum of its proper divisors (2263872746).

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

1481807556 is a wasteful number, since it uses less digits than its factorization.

1481807556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41161331 (or 41161326 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 45.

The square root of 1481807556 is about 38494.2535451722. The cubic root of 1481807556 is about 1140.0675952532.

The spelling of 1481807556 in words is "one billion, four hundred eighty-one million, eight hundred seven thousand, five hundred fifty-six".