2640412664029 has 4 divisors (see below), whose sum is σ = 3017614473184. Its totient is φ = 2263210854876.

The previous prime is 2640412663991. The next prime is 2640412664081. The reversal of 2640412664029 is 9204662140462.

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.

It is a cyclic number.

It is not a de Polignac number, because 2640412664029 - 2²¹ = 2640410566877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2640412664029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640412664429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188600904567 + ... + 188600904580.

It is an arithmetic number, because the mean of its divisors is an integer number (754403618296).

Almost surely, 2^{2640412664029} is an apocalyptic number.

It is an amenable number.

2640412664029 is a deficient number, since it is larger than the sum of its proper divisors (377201809155).

2640412664029 is an equidigital number, since it uses as much as digits as its factorization.

2640412664029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377201809154.

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 2640412664029 in words is "two trillion, six hundred forty billion, four hundred twelve million, six hundred sixty-four thousand, twenty-nine".