2640775705435 has 8 divisors (see below), whose sum is σ = 3621635253216. Its totient is φ = 1810817626560.

The previous prime is 2640775705429. The next prime is 2640775705441. The reversal of 2640775705435 is 5345075770462.

It is an interprime number because it is at equal distance from previous prime (2640775705429) and next prime (2640775705441).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2640775705435 - 2¹¹ = 2640775703387 is a prime.

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, 37725367186 + ... + 37725367255.

It is an arithmetic number, because the mean of its divisors is an integer number (452704406652).

Almost surely, 2^{2640775705435} is an apocalyptic number.

2640775705435 is a deficient number, since it is larger than the sum of its proper divisors (980859547781).

2640775705435 is an equidigital number, since it uses as much as digits as its factorization.

2640775705435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75450734453.

The product of its (nonzero) digits is 24696000, while the sum is 55.

The spelling of 2640775705435 in words is "two trillion, six hundred forty billion, seven hundred seventy-five million, seven hundred five thousand, four hundred thirty-five".