3664911625 has 8 divisors (see below), whose sum is σ = 4573809864. Its totient is φ = 2931929200.

The previous prime is 3664911619. The next prime is 3664911631. The reversal of 3664911625 is 5261194663.

It is an interprime number because it is at equal distance from previous prime (3664911619) and next prime (3664911631).

It can be written as a sum of positive squares in 4 ways, for example, as 530703369 + 3134208256 = 23037^2 + 55984^2 .

It is not a de Polignac number, because 3664911625 - 2³ = 3664911617 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14659522 + ... + 14659771.

It is an arithmetic number, because the mean of its divisors is an integer number (571726233).

Almost surely, 2^3664911625 is an apocalyptic number.

It is an amenable number.

3664911625 is a deficient number, since it is larger than the sum of its proper divisors (908898239).

3664911625 is an equidigital number, since it uses as much as digits as its factorization.

3664911625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29319308 (or 29319298 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 3664911625 is about 60538.5135678107. The cubic root of 3664911625 is about 1541.7756020743.

The spelling of 3664911625 in words is "three billion, six hundred sixty-four million, nine hundred eleven thousand, six hundred twenty-five".