542045505213 has 12 divisors (see below), whose sum is σ = 783182730460. Its totient is φ = 361258387776.

The previous prime is 542045505191. The next prime is 542045505233. The reversal of 542045505213 is 312505540245.

542045505213 is a `hidden beast` number, since 5 + 42 + 0 + 4 + 550 + 52 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 53251562169 + 488793943044 = 230763^2 + 699138^2 .

It is not a de Polignac number, because 542045505213 - 2⁹ = 542045504701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542045505233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8740918 + ... + 8802711.

Almost surely, 2^542045505213 is an apocalyptic number.

It is an amenable number.

542045505213 is a deficient number, since it is larger than the sum of its proper divisors (241137225247).

542045505213 is a wasteful number, since it uses less digits than its factorization.

542045505213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17547068 (or 17547065 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 542045505213 in words is "five hundred forty-two billion, forty-five million, five hundred five thousand, two hundred thirteen".