1545242344540 has 12 divisors (see below), whose sum is σ = 3245008923576. Its totient is φ = 618096937808.

The previous prime is 1545242344523. The next prime is 1545242344559. The reversal of 1545242344540 is 454432425451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38631058594 + ... + 38631058633.

It is an arithmetic number, because the mean of its divisors is an integer number (270417410298).

Almost surely, 2^{1545242344540} is an apocalyptic number.

1545242344540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1545242344540 is an abundant number, since it is smaller than the sum of its proper divisors (1699766579036).

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

1545242344540 is a wasteful number, since it uses less digits than its factorization.

1545242344540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77262117236 (or 77262117234 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 43.

Adding to 1545242344540 its reverse (454432425451), we get a palindrome (1999674769991).

The spelling of 1545242344540 in words is "one trillion, five hundred forty-five billion, two hundred forty-two million, three hundred forty-four thousand, five hundred forty".