999995999907 has 4 divisors (see below), whose sum is σ = 1333327999880. Its totient is φ = 666663999936.

The previous prime is 999995999903. The next prime is 999995999917. The reversal of 999995999907 is 709999599999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 709999599999 = 3 ⋅236666533333.

It is not a de Polignac number, because 999995999907 - 2² = 999995999903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999995999903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166665999982 + ... + 166665999987.

It is an arithmetic number, because the mean of its divisors is an integer number (333331999970).

Almost surely, 2^999995999907 is an apocalyptic number.

999995999907 is a deficient number, since it is larger than the sum of its proper divisors (333331999973).

999995999907 is a wasteful number, since it uses less digits than its factorization.

999995999907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333331999972.

The product of its (nonzero) digits is 13559717115, while the sum is 93.

It can be divided in two parts, 99999 and 5999907, that added together give a palindrome (6099906).

The spelling of 999995999907 in words is "nine hundred ninety-nine billion, nine hundred ninety-five million, nine hundred ninety-nine thousand, nine hundred seven".