7687765201 has 2 divisors, whose sum is σ = 7687765202. Its totient is φ = 7687765200.

The previous prime is 7687765171. The next prime is 7687765219. The reversal of 7687765201 is 1025677867.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7648377025 + 39388176 = 87455^2 + 6276^2 .

It is a cyclic number.

It is not a de Polignac number, because 7687765201 - 2²⁷ = 7553547473 is a prime.

It is not a weakly prime, because it can be changed into another prime (7687765271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3843882600 + 3843882601.

It is an arithmetic number, because the mean of its divisors is an integer number (3843882601).

Almost surely, 2^7687765201 is an apocalyptic number.

It is an amenable number.

7687765201 is a deficient number, since it is larger than the sum of its proper divisors (1).

7687765201 is an equidigital number, since it uses as much as digits as its factorization.

7687765201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 7687765201 is about 87679.9019217061. The cubic root of 7687765201 is about 1973.6343879965.

The spelling of 7687765201 in words is "seven billion, six hundred eighty-seven million, seven hundred sixty-five thousand, two hundred one".