3680345569 has 2 divisors, whose sum is σ = 3680345570. Its totient is φ = 3680345568.

The previous prime is 3680345561. The next prime is 3680345597. The reversal of 3680345569 is 9655430863.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2699841600 + 980503969 = 51960^2 + 31313^2 .

It is a cyclic number.

It is not a de Polignac number, because 3680345569 - 2³ = 3680345561 is a prime.

It is a super-2 number, since 2×3680345569² = 27089887014515867522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3680345561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840172784 + 1840172785.

It is an arithmetic number, because the mean of its divisors is an integer number (1840172785).

Almost surely, 2^3680345569 is an apocalyptic number.

It is an amenable number.

3680345569 is a deficient number, since it is larger than the sum of its proper divisors (1).

3680345569 is an equidigital number, since it uses as much as digits as its factorization.

3680345569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The square root of 3680345569 is about 60665.8517536843. The cubic root of 3680345569 is about 1543.9368504480.

The spelling of 3680345569 in words is "three billion, six hundred eighty million, three hundred forty-five thousand, five hundred sixty-nine".