643121041325214 has 32 divisors (see below), whose sum is σ = 1289147326076160. Its totient is φ = 213889999236032.

The previous prime is 643121041325179. The next prime is 643121041325249. The reversal of 643121041325214 is 412523140121346.

643121041325214 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 (643121041325179) and next prime (643121041325249).

It is a super-2 number, since 2×643121041325214² (a number of 30 digits) contains 22 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, 60862644 + ... + 70643495.

It is an arithmetic number, because the mean of its divisors is an integer number (40285853939880).

Almost surely, 2^{643121041325214} is an apocalyptic number.

643121041325214 is an abundant number, since it is smaller than the sum of its proper divisors (646026284750946).

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

643121041325214 is a wasteful number, since it uses less digits than its factorization.

643121041325214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131507984.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 643121041325214 in words is "six hundred forty-three trillion, one hundred twenty-one billion, forty-one million, three hundred twenty-five thousand, two hundred fourteen".