1542442286401 has 3 divisors (see below), whose sum is σ = 1542443528353. Its totient is φ = 1542441044450.

The previous prime is 1542442286393. The next prime is 1542442286453. The reversal of 1542442286401 is 1046822442451.

It is a happy number.

The square root of 1542442286401 is 1241951.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1542442286401 - 2³ = 1542442286393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1542442286501) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 620976 + ... + 1862926.

Almost surely, 2^{1542442286401} is an apocalyptic number.

1542442286401 is the 1241951-st square number.

1542442286401 is the 620976-th centered octagonal number.

It is an amenable number.

1542442286401 is a deficient number, since it is larger than the sum of its proper divisors (1241952).

1542442286401 is an frugal number, since it uses more digits than its factorization.

1542442286401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2483902 (or 1241951 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 43.

The spelling of 1542442286401 in words is "one trillion, five hundred forty-two billion, four hundred forty-two million, two hundred eighty-six thousand, four hundred one".