2640522103913 has 4 divisors (see below), whose sum is σ = 2642305037268. Its totient is φ = 2638739170560.

The previous prime is 2640522103909. The next prime is 2640522103937. The reversal of 2640522103913 is 3193012250462.

It is a happy number.

2640522103913 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 1858717769104 + 781804334809 = 1363348^2 + 884197^2 .

It is a cyclic number.

It is not a de Polignac number, because 2640522103913 - 2² = 2640522103909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640522103313) 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, 891464456 + ... + 891467417.

It is an arithmetic number, because the mean of its divisors is an integer number (660576259317).

Almost surely, 2^{2640522103913} is an apocalyptic number.

It is an amenable number.

2640522103913 is a deficient number, since it is larger than the sum of its proper divisors (1782933355).

2640522103913 is a wasteful number, since it uses less digits than its factorization.

2640522103913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782933354.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 2640522103913 in words is "two trillion, six hundred forty billion, five hundred twenty-two million, one hundred three thousand, nine hundred thirteen".