643004601350 has 12 divisors (see below), whose sum is σ = 1195988558604. Its totient is φ = 257201840520.

The previous prime is 643004601293. The next prime is 643004601451. The reversal of 643004601350 is 53106400346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6430045964 + ... + 6430046063.

It is an arithmetic number, because the mean of its divisors is an integer number (99665713217).

Almost surely, 2^643004601350 is an apocalyptic number.

643004601350 is a deficient number, since it is larger than the sum of its proper divisors (552983957254).

643004601350 is a wasteful number, since it uses less digits than its factorization.

643004601350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12860092039 (or 12860092034 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 643004601350 in words is "six hundred forty-three billion, four million, six hundred one thousand, three hundred fifty".