643062034752 has 112 divisors (see below), whose sum is σ = 1749142007424. Its totient is φ = 208380928000.

The previous prime is 643062034751. The next prime is 643062034753. The reversal of 643062034752 is 257430260346.

It is an interprime number because it is at equal distance from previous prime (643062034751) and next prime (643062034753).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (643062034751) 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, 2066677 + ... + 2357387.

It is an arithmetic number, because the mean of its divisors is an integer number (15617339352).

Almost surely, 2^643062034752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 643062034752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874571003712).

643062034752 is an abundant number, since it is smaller than the sum of its proper divisors (1106079972672).

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

643062034752 is a wasteful number, since it uses less digits than its factorization.

643062034752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291048 (or 291038 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 42.

The spelling of 643062034752 in words is "six hundred forty-three billion, sixty-two million, thirty-four thousand, seven hundred fifty-two".