643141141370 has 64 divisors (see below), whose sum is σ = 1463313309696. Its totient is φ = 198042382080.

The previous prime is 643141141369. The next prime is 643141141381. The reversal of 643141141370 is 73141141346.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 643141141370.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9516986 + ... + 9584325.

It is an arithmetic number, because the mean of its divisors is an integer number (22864270464).

Almost surely, 2^643141141370 is an apocalyptic number.

643141141370 is an abundant number, since it is smaller than the sum of its proper divisors (820172168326).

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

643141141370 is a wasteful number, since it uses less digits than its factorization.

643141141370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19101375.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 643141141370 in words is "six hundred forty-three billion, one hundred forty-one million, one hundred forty-one thousand, three hundred seventy".