7564406966128 has 20 divisors (see below), whose sum is σ = 14717360841120. Its totient is φ = 3766378361984.

The previous prime is 7564406966119. The next prime is 7564406966143. The reversal of 7564406966128 is 8216696044657.

It is a self number, because there is not a number n which added to its sum of digits gives 7564406966128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989066125 + ... + 989073772.

It is an arithmetic number, because the mean of its divisors is an integer number (735868042056).

Almost surely, 2^{7564406966128} is an apocalyptic number.

It is an amenable number.

7564406966128 is a deficient number, since it is larger than the sum of its proper divisors (7152953874992).

7564406966128 is a wasteful number, since it uses less digits than its factorization.

7564406966128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978140144 (or 1978140138 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 7564406966128 in words is "seven trillion, five hundred sixty-four billion, four hundred six million, nine hundred sixty-six thousand, one hundred twenty-eight".