10765215709 has 2 divisors, whose sum is σ = 10765215710. Its totient is φ = 10765215708.

The previous prime is 10765215691. The next prime is 10765215731. The reversal of 10765215709 is 90751256701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8926092484 + 1839123225 = 94478^2 + 42885^2 .

It is a cyclic number.

It is not a de Polignac number, because 10765215709 - 2¹¹ = 10765213661 is a prime.

It is a super-2 number, since 2×10765215709² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10765213709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5382607854 + 5382607855.

It is an arithmetic number, because the mean of its divisors is an integer number (5382607855).

Almost surely, 2^10765215709 is an apocalyptic number.

It is an amenable number.

10765215709 is a deficient number, since it is larger than the sum of its proper divisors (1).

10765215709 is an equidigital number, since it uses as much as digits as its factorization.

10765215709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 43.

The spelling of 10765215709 in words is "ten billion, seven hundred sixty-five million, two hundred fifteen thousand, seven hundred nine".