542236503644 has 48 divisors (see below), whose sum is σ = 1046446872576. Its totient is φ = 243802353600.

The previous prime is 542236503619. The next prime is 542236503661. The reversal of 542236503644 is 446305632245.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 542236503595 and 542236503604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364489 + ... + 1716479.

It is an arithmetic number, because the mean of its divisors is an integer number (21800976512).

Almost surely, 2^542236503644 is an apocalyptic number.

It is an amenable number.

542236503644 is a deficient number, since it is larger than the sum of its proper divisors (504210368932).

542236503644 is a wasteful number, since it uses less digits than its factorization.

542236503644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352386 (or 352384 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 44.

The spelling of 542236503644 in words is "five hundred forty-two billion, two hundred thirty-six million, five hundred three thousand, six hundred forty-four".