1542154531444 has 48 divisors (see below), whose sum is σ = 2738499079680. Its totient is φ = 759767823360.

The previous prime is 1542154531433. The next prime is 1542154531451. The reversal of 1542154531444 is 4441354512451.

It is a self number, because there is not a number n which added to its sum of digits gives 1542154531444.

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, 458836324 + ... + 458839684.

It is an arithmetic number, because the mean of its divisors is an integer number (57052064160).

Almost surely, 2^{1542154531444} is an apocalyptic number.

It is an amenable number.

1542154531444 is a deficient number, since it is larger than the sum of its proper divisors (1196344548236).

1542154531444 is a wasteful number, since it uses less digits than its factorization.

1542154531444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968 (or 5966 counting only the distinct ones).

The product of its digits is 768000, while the sum is 43.

The spelling of 1542154531444 in words is "one trillion, five hundred forty-two billion, one hundred fifty-four million, five hundred thirty-one thousand, four hundred forty-four".