7641894864234 has 16 divisors (see below), whose sum is σ = 15511905993888. Its totient is φ = 2509278910512.

The previous prime is 7641894864211. The next prime is 7641894864251. The reversal of 7641894864234 is 4324684981467.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9504843957 + ... + 9504844760.

It is an arithmetic number, because the mean of its divisors is an integer number (969494124618).

Almost surely, 2^{7641894864234} is an apocalyptic number.

7641894864234 is an abundant number, since it is smaller than the sum of its proper divisors (7870011129654).

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

7641894864234 is a wasteful number, since it uses less digits than its factorization.

7641894864234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19009688789.

The product of its digits is 222953472, while the sum is 66.

The spelling of 7641894864234 in words is "seven trillion, six hundred forty-one billion, eight hundred ninety-four million, eight hundred sixty-four thousand, two hundred thirty-four".