2542437197189 has 4 divisors (see below), whose sum is σ = 2543631392460. Its totient is φ = 2541243001920.

The previous prime is 2542437197173. The next prime is 2542437197231. The reversal of 2542437197189 is 9817917342452.

2542437197189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 777835802500 + 1764601394689 = 881950^2 + 1328383^2 .

It is a cyclic number.

It is not a de Polignac number, because 2542437197189 - 2⁴ = 2542437197173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542437197119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597094442 + ... + 597098699.

It is an arithmetic number, because the mean of its divisors is an integer number (635907848115).

Almost surely, 2^{2542437197189} is an apocalyptic number.

It is an amenable number.

2542437197189 is a deficient number, since it is larger than the sum of its proper divisors (1194195271).

2542437197189 is a wasteful number, since it uses less digits than its factorization.

2542437197189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194195270.

The product of its digits is 30481920, while the sum is 62.

The spelling of 2542437197189 in words is "two trillion, five hundred forty-two billion, four hundred thirty-seven million, one hundred ninety-seven thousand, one hundred eighty-nine".