542236503646 has 4 divisors (see below), whose sum is σ = 813354755472. Its totient is φ = 271118251822.

The previous prime is 542236503619. The next prime is 542236503661. The reversal of 542236503646 is 646305632245.

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

It is a junction number, because it is equal to n+sod(n) for n = 542236503596 and 542236503605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135559125910 + ... + 135559125913.

It is an arithmetic number, because the mean of its divisors is an integer number (203338688868).

Almost surely, 2^542236503646 is an apocalyptic number.

542236503646 is a deficient number, since it is larger than the sum of its proper divisors (271118251826).

542236503646 is a wasteful number, since it uses less digits than its factorization.

542236503646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271118251825.

The product of its (nonzero) digits is 3110400, while the sum is 46.

The spelling of 542236503646 in words is "five hundred forty-two billion, two hundred thirty-six million, five hundred three thousand, six hundred forty-six".