542056246623 has 6 divisors (see below), whose sum is σ = 782970134024. Its totient is φ = 361370831076.

The previous prime is 542056246577. The next prime is 542056246637. The reversal of 542056246623 is 326642650245.

542056246623 is a `hidden beast` number, since 5 + 4 + 2 + 0 + 562 + 4 + 66 + 23 = 666.

It is not a de Polignac number, because 542056246623 - 2¹³ = 542056238431 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 (542056246423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30114235915 + ... + 30114235932.

Almost surely, 2^542056246623 is an apocalyptic number.

542056246623 is a deficient number, since it is larger than the sum of its proper divisors (240913887401).

542056246623 is a wasteful number, since it uses less digits than its factorization.

542056246623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60228471853 (or 60228471850 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

Adding to 542056246623 its reverse (326642650245), we get a palindrome (868698896868).

The spelling of 542056246623 in words is "five hundred forty-two billion, fifty-six million, two hundred forty-six thousand, six hundred twenty-three".