999936962977 has 2 divisors, whose sum is σ = 999936962978. Its totient is φ = 999936962976.

The previous prime is 999936962923. The next prime is 999936963007. The reversal of 999936962977 is 779269639999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 985286523456 + 14650439521 = 992616^2 + 121039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999936962977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 999936962894 and 999936962903.

It is not a weakly prime, because it can be changed into another prime (999936962377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499968481488 + 499968481489.

It is an arithmetic number, because the mean of its divisors is an integer number (499968481489).

Almost surely, 2^999936962977 is an apocalyptic number.

It is an amenable number.

999936962977 is a deficient number, since it is larger than the sum of its proper divisors (1).

999936962977 is an equidigital number, since it uses as much as digits as its factorization.

999936962977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5624771544, while the sum is 85.

The spelling of 999936962977 in words is "nine hundred ninety-nine billion, nine hundred thirty-six million, nine hundred sixty-two thousand, nine hundred seventy-seven".