9625804652669 has 2 divisors, whose sum is σ = 9625804652670. Its totient is φ = 9625804652668.

The previous prime is 9625804652603. The next prime is 9625804652693. The reversal of 9625804652669 is 9662564085269.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8618716135225 + 1007088517444 = 2935765^2 + 1003538^2 .

It is a cyclic number.

It is not a de Polignac number, because 9625804652669 - 2¹² = 9625804648573 is a prime.

It is a super-2 number, since 2×9625804652669² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9625804652599 and 9625804652608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9625804652869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4812902326334 + 4812902326335.

It is an arithmetic number, because the mean of its divisors is an integer number (4812902326335).

Almost surely, 2^{9625804652669} is an apocalyptic number.

It is an amenable number.

9625804652669 is a deficient number, since it is larger than the sum of its proper divisors (1).

9625804652669 is an equidigital number, since it uses as much as digits as its factorization.

9625804652669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 335923200, while the sum is 68.

The spelling of 9625804652669 in words is "nine trillion, six hundred twenty-five billion, eight hundred four million, six hundred fifty-two thousand, six hundred sixty-nine".