3640465001 has 4 divisors (see below), whose sum is σ = 3798746112. Its totient is φ = 3482183892.

The previous prime is 3640464991. The next prime is 3640465013. The reversal of 3640465001 is 1005640463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1005640463 = 107 ⋅9398509.

It is a cyclic number.

It is not a de Polignac number, because 3640465001 - 2¹⁰ = 3640463977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3640465201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79140521 + ... + 79140566.

It is an arithmetic number, because the mean of its divisors is an integer number (949686528).

Almost surely, 2^3640465001 is an apocalyptic number.

It is an amenable number.

3640465001 is a deficient number, since it is larger than the sum of its proper divisors (158281111).

3640465001 is a wasteful number, since it uses less digits than its factorization.

3640465001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158281110.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3640465001 is about 60336.2660511901. The cubic root of 3640465001 is about 1538.3398369881.

The spelling of 3640465001 in words is "three billion, six hundred forty million, four hundred sixty-five thousand, one".