4052636420465 has 4 divisors (see below), whose sum is σ = 4863163704564. Its totient is φ = 3242109136368.

The previous prime is 4052636420461. The next prime is 4052636420537. The reversal of 4052636420465 is 5640246362504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 712518315664 + 3340118104801 = 844108^2 + 1827599^2 .

It is a cyclic number.

It is not a de Polignac number, because 4052636420465 - 2² = 4052636420461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4052636420461) 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, 405263642042 + ... + 405263642051.

It is an arithmetic number, because the mean of its divisors is an integer number (1215790926141).

Almost surely, 2^{4052636420465} is an apocalyptic number.

It is an amenable number.

4052636420465 is a deficient number, since it is larger than the sum of its proper divisors (810527284099).

4052636420465 is an equidigital number, since it uses as much as digits as its factorization.

4052636420465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810527284098.

The product of its (nonzero) digits is 4147200, while the sum is 47.

The spelling of 4052636420465 in words is "four trillion, fifty-two billion, six hundred thirty-six million, four hundred twenty thousand, four hundred sixty-five".