9926195357977 has 2 divisors, whose sum is σ = 9926195357978. Its totient is φ = 9926195357976.

The previous prime is 9926195357971. The next prime is 9926195358007. The reversal of 9926195357977 is 7797535916299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9484527452416 + 441667905561 = 3079696^2 + 664581^2 .

It is an emirp because it is prime and its reverse (7797535916299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9926195357977 - 2¹¹ = 9926195355929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9926195357897 and 9926195357906.

It is not a weakly prime, because it can be changed into another prime (9926195357971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4963097678988 + 4963097678989.

It is an arithmetic number, because the mean of its divisors is an integer number (4963097678989).

Almost surely, 2^{9926195357977} is an apocalyptic number.

It is an amenable number.

9926195357977 is a deficient number, since it is larger than the sum of its proper divisors (1).

9926195357977 is an equidigital number, since it uses as much as digits as its factorization.

9926195357977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2025380700, while the sum is 79.

The spelling of 9926195357977 in words is "nine trillion, nine hundred twenty-six billion, one hundred ninety-five million, three hundred fifty-seven thousand, nine hundred seventy-seven".