999999996373 has 16 divisors (see below), whose sum is σ = 1174537087360. Its totient is φ = 833414152896.

The previous prime is 999999996371. The next prime is 999999996449. The reversal of 999999996373 is 373699999999.

It is a cyclic number.

It is not a de Polignac number, because 999999996373 - 2¹ = 999999996371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999999996371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 917658 + ... + 1685851.

It is an arithmetic number, because the mean of its divisors is an integer number (73408567960).

Almost surely, 2^999999996373 is an apocalyptic number.

It is an amenable number.

999999996373 is a deficient number, since it is larger than the sum of its proper divisors (174537090987).

999999996373 is a wasteful number, since it uses less digits than its factorization.

999999996373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605036.

The product of its digits is 16271660538, while the sum is 91.

The spelling of 999999996373 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-six thousand, three hundred seventy-three".