999959230747 has 2 divisors, whose sum is σ = 999959230748. Its totient is φ = 999959230746.

The previous prime is 999959230703. The next prime is 999959230789. The reversal of 999959230747 is 747032959999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999959230747 is a prime.

It is a super-2 number, since 2×999959230747² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 999959230747.

It is not a weakly prime, because it can be changed into another prime (999959290747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499979615373 + 499979615374.

It is an arithmetic number, because the mean of its divisors is an integer number (499979615374).

Almost surely, 2^999959230747 is an apocalyptic number.

999959230747 is the 577339-th hex number.

999959230747 is a deficient number, since it is larger than the sum of its proper divisors (1).

999959230747 is an equidigital number, since it uses as much as digits as its factorization.

999959230747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 347208120, while the sum is 73.

The spelling of 999959230747 in words is "nine hundred ninety-nine billion, nine hundred fifty-nine million, two hundred thirty thousand, seven hundred forty-seven".