1542544452373 has 2 divisors, whose sum is σ = 1542544452374. Its totient is φ = 1542544452372.

The previous prime is 1542544452341. The next prime is 1542544452487. The reversal of 1542544452373 is 3732544452451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1534184458884 + 8359993489 = 1238622^2 + 91433^2 .

It is an emirp because it is prime and its reverse (3732544452451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1542544452373 - 2⁵ = 1542544452341 is a prime.

It is a super-2 number, since 2×1542544452373² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542544452773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771272226186 + 771272226187.

It is an arithmetic number, because the mean of its divisors is an integer number (771272226187).

Almost surely, 2^{1542544452373} is an apocalyptic number.

It is an amenable number.

1542544452373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542544452373 is an equidigital number, since it uses as much as digits as its factorization.

1542544452373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064000, while the sum is 49.

The spelling of 1542544452373 in words is "one trillion, five hundred forty-two billion, five hundred forty-four million, four hundred fifty-two thousand, three hundred seventy-three".