1542403511173 has 24 divisors (see below), whose sum is σ = 1924292466720. Its totient is φ = 1228846338720.

The previous prime is 1542403511149. The next prime is 1542403511179. The reversal of 1542403511173 is 3711153042451.

It is a de Polignac number, because none of the positive numbers 2^k-1542403511173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542403511179) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15580063 + ... + 15678748.

It is an arithmetic number, because the mean of its divisors is an integer number (80178852780).

Almost surely, 2^{1542403511173} is an apocalyptic number.

It is an amenable number.

1542403511173 is a deficient number, since it is larger than the sum of its proper divisors (381888955547).

1542403511173 is a wasteful number, since it uses less digits than its factorization.

1542403511173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31258897 (or 31258890 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 1542403511173 in words is "one trillion, five hundred forty-two billion, four hundred three million, five hundred eleven thousand, one hundred seventy-three".