642032054052 has 12 divisors (see below), whose sum is σ = 1498074792816. Its totient is φ = 214010684680.

The previous prime is 642032054033. The next prime is 642032054087. The reversal of 642032054052 is 250450230246.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26751335574 + ... + 26751335597.

It is an arithmetic number, because the mean of its divisors is an integer number (124839566068).

Almost surely, 2^642032054052 is an apocalyptic number.

It is an amenable number.

642032054052 is an abundant number, since it is smaller than the sum of its proper divisors (856042738764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642032054052 is a wasteful number, since it uses less digits than its factorization.

642032054052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53502671178 (or 53502671176 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 642032054052 its reverse (250450230246), we get a palindrome (892482284298).

The spelling of 642032054052 in words is "six hundred forty-two billion, thirty-two million, fifty-four thousand, fifty-two".