1581410282540 has 96 divisors (see below), whose sum is σ = 3672727894080. Its totient is φ = 567176192000.

The previous prime is 1581410282519. The next prime is 1581410282579. The reversal of 1581410282540 is 452820141851.

It is a super-3 number, since 3×1581410282540³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7750874 + ... + 7952286.

It is an arithmetic number, because the mean of its divisors is an integer number (38257582230).

Almost surely, 2^{1581410282540} is an apocalyptic number.

1581410282540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1581410282540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1836363947040).

1581410282540 is an abundant number, since it is smaller than the sum of its proper divisors (2091317611540).

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

1581410282540 is a wasteful number, since it uses less digits than its factorization.

1581410282540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201923 (or 201921 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 41.

The spelling of 1581410282540 in words is "one trillion, five hundred eighty-one billion, four hundred ten million, two hundred eighty-two thousand, five hundred forty".