1545324021442 has 16 divisors (see below), whose sum is σ = 2533510351872. Its totient is φ = 703752874560.

The previous prime is 1545324021407. The next prime is 1545324021491. The reversal of 1545324021442 is 2441204235451.

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, 733074858 + ... + 733076965.

It is an arithmetic number, because the mean of its divisors is an integer number (158344396992).

Almost surely, 2^{1545324021442} is an apocalyptic number.

1545324021442 is a deficient number, since it is larger than the sum of its proper divisors (988186330430).

1545324021442 is a wasteful number, since it uses less digits than its factorization.

1545324021442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466151873.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 1545324021442 its reverse (2441204235451), we get a palindrome (3986528256893).

The spelling of 1545324021442 in words is "one trillion, five hundred forty-five billion, three hundred twenty-four million, twenty-one thousand, four hundred forty-two".