3640125019 has 2 divisors, whose sum is σ = 3640125020. Its totient is φ = 3640125018.

The previous prime is 3640125001. The next prime is 3640125031. The reversal of 3640125019 is 9105210463.

It is a strong prime.

It is an emirp because it is prime and its reverse (9105210463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3640125019 - 2¹¹ = 3640122971 is a prime.

It is a super-2 number, since 2×3640125019² = 26501020307899500722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3640125719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820062509 + 1820062510.

It is an arithmetic number, because the mean of its divisors is an integer number (1820062510).

Almost surely, 2^3640125019 is an apocalyptic number.

3640125019 is a deficient number, since it is larger than the sum of its proper divisors (1).

3640125019 is an equidigital number, since it uses as much as digits as its factorization.

3640125019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 3640125019 is about 60333.4485919709. The cubic root of 3640125019 is about 1538.2919471228.

The spelling of 3640125019 in words is "three billion, six hundred forty million, one hundred twenty-five thousand, nineteen".