1825481509487 has 8 divisors (see below), whose sum is σ = 1838877229056. Its totient is φ = 1812086819712.

The previous prime is 1825481509459. The next prime is 1825481509559. The reversal of 1825481509487 is 7849051845281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1825481509487 - 2⁸ = 1825481509231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825481509087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3501458 + ... + 3988880.

It is an arithmetic number, because the mean of its divisors is an integer number (229859653632).

Almost surely, 2^{1825481509487} is an apocalyptic number.

1825481509487 is a deficient number, since it is larger than the sum of its proper divisors (13395719569).

1825481509487 is a wasteful number, since it uses less digits than its factorization.

1825481509487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514897.

The product of its (nonzero) digits is 25804800, while the sum is 62.

The spelling of 1825481509487 in words is "one trillion, eight hundred twenty-five billion, four hundred eighty-one million, five hundred nine thousand, four hundred eighty-seven".