643152919262 has 16 divisors (see below), whose sum is σ = 1128188510592. Its totient is φ = 269226803160.

The previous prime is 643152919231. The next prime is 643152919289. The reversal of 643152919262 is 262919251346.

It is a self number, because there is not a number n which added to its sum of digits gives 643152919262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534179564 + ... + 534180767.

It is an arithmetic number, because the mean of its divisors is an integer number (70511781912).

Almost surely, 2^643152919262 is an apocalyptic number.

643152919262 is a deficient number, since it is larger than the sum of its proper divisors (485035591330).

643152919262 is a wasteful number, since it uses less digits than its factorization.

643152919262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068360383.

The product of its digits is 1399680, while the sum is 50.

The spelling of 643152919262 in words is "six hundred forty-three billion, one hundred fifty-two million, nine hundred nineteen thousand, two hundred sixty-two".