643300465235 has 16 divisors (see below), whose sum is σ = 814574905920. Its totient is φ = 486733632000.

The previous prime is 643300465217. The next prime is 643300465253. The reversal of 643300465235 is 532564003346.

643300465235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (643300465217) and next prime (643300465253).

It is not a de Polignac number, because 643300465235 - 2³² = 639005497939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 643300465192 and 643300465201.

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, 31416266 + ... + 31436735.

It is an arithmetic number, because the mean of its divisors is an integer number (50910931620).

Almost surely, 2^643300465235 is an apocalyptic number.

643300465235 is a deficient number, since it is larger than the sum of its proper divisors (171274440685).

643300465235 is a wasteful number, since it uses less digits than its factorization.

643300465235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62853118.

The product of its (nonzero) digits is 777600, while the sum is 41.

The spelling of 643300465235 in words is "six hundred forty-three billion, three hundred million, four hundred sixty-five thousand, two hundred thirty-five".