3641420465 has 4 divisors (see below), whose sum is σ = 4369704564. Its totient is φ = 2913136368.

The previous prime is 3641420459. The next prime is 3641420483. The reversal of 3641420465 is 5640241463.

3641420465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5640241463 = 31 ⋅181943273.

It can be written as a sum of positive squares in 2 ways, for example, as 365918641 + 3275501824 = 19129^2 + 57232^2 .

It is a cyclic number.

It is not a de Polignac number, because 3641420465 - 2¹² = 3641416369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364142042 + ... + 364142051.

It is an arithmetic number, because the mean of its divisors is an integer number (1092426141).

Almost surely, 2^3641420465 is an apocalyptic number.

It is an amenable number.

3641420465 is a deficient number, since it is larger than the sum of its proper divisors (728284099).

3641420465 is an equidigital number, since it uses as much as digits as its factorization.

3641420465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728284098.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 3641420465 is about 60344.1833568075. The cubic root of 3641420465 is about 1538.4744076875.

The spelling of 3641420465 in words is "three billion, six hundred forty-one million, four hundred twenty thousand, four hundred sixty-five".