1538489982240 has 288 divisors, whose sum is σ = 5851503141120. Its totient is φ = 365808033792.

The previous prime is 1538489982233. The next prime is 1538489982277. The reversal of 1538489982240 is 422899848351.

1538489982240 is a `hidden beast` number, since 1 + 5 + 3 + 8 + 489 + 98 + 22 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1188744 + ... + 2118983.

It is an arithmetic number, because the mean of its divisors is an integer number (20317719240).

Almost surely, 2^{1538489982240} is an apocalyptic number.

1538489982240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1538489982240 is an abundant number, since it is smaller than the sum of its proper divisors (4313013158880).

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

1538489982240 is a wasteful number, since it uses less digits than its factorization.

1538489982240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307784 (or 3307773 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 63.

The spelling of 1538489982240 in words is "one trillion, five hundred thirty-eight billion, four hundred eighty-nine million, nine hundred eighty-two thousand, two hundred forty".