1500481981836 has 36 divisors (see below), whose sum is σ = 3855063458064. Its totient is φ = 491961304800.

The previous prime is 1500481981829. The next prime is 1500481981837. The reversal of 1500481981836 is 6381891840051.

It is a happy number.

1500481981836 is a `hidden beast` number, since 1 + 5 + 0 + 0 + 481 + 9 + 81 + 83 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (1500481981837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341637600 + ... + 341641991.

Almost surely, 2^{1500481981836} is an apocalyptic number.

It is an amenable number.

1500481981836 is an abundant number, since it is smaller than the sum of its proper divisors (2354581476228).

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

1500481981836 is a wasteful number, since it uses less digits than its factorization.

1500481981836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683279662 (or 683279657 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 54.

The spelling of 1500481981836 in words is "one trillion, five hundred billion, four hundred eighty-one million, nine hundred eighty-one thousand, eight hundred thirty-six".