3640755619 has 2 divisors, whose sum is σ = 3640755620. Its totient is φ = 3640755618.

The previous prime is 3640755607. The next prime is 3640755697. The reversal of 3640755619 is 9165570463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3640755619 - 2²⁷ = 3506537891 is a prime.

It is a super-2 number, since 2×3640755619² = 26510202954560146322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3640755919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820377809 + 1820377810.

It is an arithmetic number, because the mean of its divisors is an integer number (1820377810).

Almost surely, 2^3640755619 is an apocalyptic number.

3640755619 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640755619 is an equidigital number, since it uses as much as digits as its factorization.

3640755619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 3640755619 is about 60338.6743225272. The cubic root of 3640755619 is about 1538.3807710767.

The spelling of 3640755619 in words is "three billion, six hundred forty million, seven hundred fifty-five thousand, six hundred nineteen".