842542006455 has 12 divisors (see below), whose sum is σ = 1460406144600. Its totient is φ = 449355736752.

The previous prime is 842542006441. The next prime is 842542006457. The reversal of 842542006455 is 554600245248.

842542006455 is a `hidden beast` number, since 8 + 42 + 542 + 0 + 0 + 64 + 5 + 5 = 666.

It is not a de Polignac number, because 842542006455 - 2⁶ = 842542006391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 18723155699 = 842542006455 / (8 + 4 + 2 + 5 + 4 + 2 + 0 + 0 + 6 + 4 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 842542006455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842542006457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9361577805 + ... + 9361577894.

It is an arithmetic number, because the mean of its divisors is an integer number (121700512050).

Almost surely, 2^842542006455 is an apocalyptic number.

842542006455 is a deficient number, since it is larger than the sum of its proper divisors (617864138145).

842542006455 is a wasteful number, since it uses less digits than its factorization.

842542006455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18723155710 (or 18723155707 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 45.

The spelling of 842542006455 in words is "eight hundred forty-two billion, five hundred forty-two million, six thousand, four hundred fifty-five".