1545423405512 has 32 divisors (see below), whose sum is σ = 3312049324800. Its totient is φ = 662238768384.

The previous prime is 1545423405497. The next prime is 1545423405541. The reversal of 1545423405512 is 2155043245451.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1545423405512.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1343873 + ... + 2212880.

It is an arithmetic number, because the mean of its divisors is an integer number (103501541400).

Almost surely, 2^{1545423405512} is an apocalyptic number.

It is an amenable number.

1545423405512 is an abundant number, since it is smaller than the sum of its proper divisors (1766625919288).

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

1545423405512 is a wasteful number, since it uses less digits than its factorization.

1545423405512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564525 (or 3564521 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 41.

The spelling of 1545423405512 in words is "one trillion, five hundred forty-five billion, four hundred twenty-three million, four hundred five thousand, five hundred twelve".