9999994764625 has 16 divisors (see below), whose sum is σ = 12481275905280. Its totient is φ = 7999173735600.

The previous prime is 9999994764619. The next prime is 9999994764631. The reversal of 9999994764625 is 5264674999999.

It is an interprime number because it is at equal distance from previous prime (9999994764619) and next prime (9999994764631).

It is not a de Polignac number, because 9999994764625 - 2¹⁹ = 9999994240337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2887635 + ... + 5323384.

It is an arithmetic number, because the mean of its divisors is an integer number (780079744080).

Almost surely, 2^{9999994764625} is an apocalyptic number.

It is an amenable number.

9999994764625 is a deficient number, since it is larger than the sum of its proper divisors (2481281140655).

9999994764625 is an equidigital number, since it uses as much as digits as its factorization.

9999994764625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8220777 (or 8220767 counting only the distinct ones).

The product of its digits is 21427701120, while the sum is 88.

The spelling of 9999994764625 in words is "nine trillion, nine hundred ninety-nine billion, nine hundred ninety-four million, seven hundred sixty-four thousand, six hundred twenty-five".