107765807657 has 8 divisors (see below), whose sum is σ = 111495894600. Its totient is φ = 104036655744.

The previous prime is 107765807627. The next prime is 107765807671. The reversal of 107765807657 is 756708567701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1544568601 + 106221239056 = 39301^2 + 325916^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107765807657 is a prime.

It is a super-2 number, since 2×107765807657² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107765807596 and 107765807605.

It is not an unprimeable number, because it can be changed into a prime (107765807627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4883 + ... + 464279.

It is an arithmetic number, because the mean of its divisors is an integer number (13936986825).

Almost surely, 2^107765807657 is an apocalyptic number.

It is an amenable number.

107765807657 is a deficient number, since it is larger than the sum of its proper divisors (3730086943).

107765807657 is an equidigital number, since it uses as much as digits as its factorization.

107765807657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467515.

The product of its (nonzero) digits is 17287200, while the sum is 59.

The spelling of 107765807657 in words is "one hundred seven billion, seven hundred sixty-five million, eight hundred seven thousand, six hundred fifty-seven".