1542093221845 has 16 divisors (see below), whose sum is σ = 2073300766848. Its totient is φ = 1091210927040.

The previous prime is 1542093221827. The next prime is 1542093221861. The reversal of 1542093221845 is 5481223902451.

It is not a de Polignac number, because 1542093221845 - 2¹⁹ = 1542092697557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1542093221795 and 1542093221804.

It is a congruent number.

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, 378890649 + ... + 378894718.

It is an arithmetic number, because the mean of its divisors is an integer number (129581297928).

Almost surely, 2^{1542093221845} is an apocalyptic number.

It is an amenable number.

1542093221845 is a deficient number, since it is larger than the sum of its proper divisors (531207545003).

1542093221845 is a wasteful number, since it uses less digits than its factorization.

1542093221845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757785420.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 1542093221845 in words is "one trillion, five hundred forty-two billion, ninety-three million, two hundred twenty-one thousand, eight hundred forty-five".