10689642077 has 2 divisors, whose sum is σ = 10689642078. Its totient is φ = 10689642076.

The previous prime is 10689642059. The next prime is 10689642083. The reversal of 10689642077 is 77024698601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10684529956 + 5112121 = 103366^2 + 2261^2 .

It is a cyclic number.

It is not a de Polignac number, because 10689642077 - 2²⁶ = 10622533213 is a prime.

It is a super-2 number, since 2×10689642077² (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 (10689642097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5344821038 + 5344821039.

It is an arithmetic number, because the mean of its divisors is an integer number (5344821039).

Almost surely, 2^10689642077 is an apocalyptic number.

It is an amenable number.

10689642077 is a deficient number, since it is larger than the sum of its proper divisors (1).

10689642077 is an equidigital number, since it uses as much as digits as its factorization.

10689642077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 10689642077 in words is "ten billion, six hundred eighty-nine million, six hundred forty-two thousand, seventy-seven".