642553764710 has 32 divisors (see below), whose sum is σ = 1358799013152. Its totient is φ = 215682382080.

The previous prime is 642553764563. The next prime is 642553764719. The reversal of 642553764710 is 17467355246.

642553764710 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×642553764710³ (a number of 36 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642553764719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224667719 + ... + 224670578.

It is an arithmetic number, because the mean of its divisors is an integer number (42462469161).

Almost surely, 2^642553764710 is an apocalyptic number.

642553764710 is an abundant number, since it is smaller than the sum of its proper divisors (716245248442).

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

642553764710 is a wasteful number, since it uses less digits than its factorization.

642553764710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449338328.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 642553764710 in words is "six hundred forty-two billion, five hundred fifty-three million, seven hundred sixty-four thousand, seven hundred ten".