9926260678553 has 2 divisors, whose sum is σ = 9926260678554. Its totient is φ = 9926260678552.

The previous prime is 9926260678517. The next prime is 9926260678561. The reversal of 9926260678553 is 3558760626299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7483551129664 + 2442709548889 = 2735608^2 + 1562917^2 .

It is a cyclic number.

It is not a de Polignac number, because 9926260678553 - 2²⁰ = 9926259629977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (9926260678153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4963130339276 + 4963130339277.

It is an arithmetic number, because the mean of its divisors is an integer number (4963130339277).

Almost surely, 2^{9926260678553} is an apocalyptic number.

It is an amenable number.

9926260678553 is a deficient number, since it is larger than the sum of its proper divisors (1).

9926260678553 is an equidigital number, since it uses as much as digits as its factorization.

9926260678553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 293932800, while the sum is 68.

The spelling of 9926260678553 in words is "nine trillion, nine hundred twenty-six billion, two hundred sixty million, six hundred seventy-eight thousand, five hundred fifty-three".