1540424141540 has 48 divisors (see below), whose sum is σ = 3339462282240. Its totient is φ = 596253882240.

The previous prime is 1540424141539. The next prime is 1540424141551. The reversal of 1540424141540 is 451414240451.

It is a self number, because there is not a number n which added to its sum of digits gives 1540424141540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10406366 + ... + 10553354.

It is an arithmetic number, because the mean of its divisors is an integer number (69572130880).

Almost surely, 2^{1540424141540} is an apocalyptic number.

1540424141540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1540424141540 is an abundant number, since it is smaller than the sum of its proper divisors (1799038140700).

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

1540424141540 is a wasteful number, since it uses less digits than its factorization.

1540424141540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163932 (or 163930 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 1540424141540 its reverse (451414240451), we get a palindrome (1991838381991).

The spelling of 1540424141540 in words is "one trillion, five hundred forty billion, four hundred twenty-four million, one hundred forty-one thousand, five hundred forty".