542061633644 has 48 divisors (see below), whose sum is σ = 967063587840. Its totient is φ = 265781380800.

The previous prime is 542061633613. The next prime is 542061633661. The reversal of 542061633644 is 446336160245.

It is a junction number, because it is equal to n+sod(n) for n = 542061633595 and 542061633604.

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, 277836869 + ... + 277838819.

It is an arithmetic number, because the mean of its divisors is an integer number (20147158080).

Almost surely, 2^542061633644 is an apocalyptic number.

It is an amenable number.

542061633644 is a deficient number, since it is larger than the sum of its proper divisors (425001954196).

542061633644 is a wasteful number, since it uses less digits than its factorization.

542061633644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4310 (or 4308 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 44.

Adding to 542061633644 its reverse (446336160245), we get a palindrome (988397793889).

The spelling of 542061633644 in words is "five hundred forty-two billion, sixty-one million, six hundred thirty-three thousand, six hundred forty-four".