642464353510 has 32 divisors (see below), whose sum is σ = 1349760983040. Its totient is φ = 215586821472.

The previous prime is 642464353507. The next prime is 642464353523. The reversal of 642464353510 is 15353464246.

It is a happy number.

642464353510 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 3×642464353510³ (a number of 36 digits) contains 333 as substring.

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, 97635670 + ... + 97642249.

It is an arithmetic number, because the mean of its divisors is an integer number (42180030720).

Almost surely, 2^642464353510 is an apocalyptic number.

642464353510 is an abundant number, since it is smaller than the sum of its proper divisors (707296629530).

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

642464353510 is a wasteful number, since it uses less digits than its factorization.

642464353510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195277980.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 642464353510 in words is "six hundred forty-two billion, four hundred sixty-four million, three hundred fifty-three thousand, five hundred ten".