10261227517 has 2 divisors, whose sum is σ = 10261227518. Its totient is φ = 10261227516.

The previous prime is 10261227491. The next prime is 10261227583. The reversal of 10261227517 is 71572216201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7628100921 + 2633126596 = 87339^2 + 51314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10261227517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10261237517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130613758 + 5130613759.

It is an arithmetic number, because the mean of its divisors is an integer number (5130613759).

Almost surely, 2^10261227517 is an apocalyptic number.

It is an amenable number.

10261227517 is a deficient number, since it is larger than the sum of its proper divisors (1).

10261227517 is an equidigital number, since it uses as much as digits as its factorization.

10261227517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 34.

The spelling of 10261227517 in words is "ten billion, two hundred sixty-one million, two hundred twenty-seven thousand, five hundred seventeen".