3540639698317 has 4 divisors (see below), whose sum is σ = 3540726747580. Its totient is φ = 3540552649056.

The previous prime is 3540639698279. The next prime is 3540639698339. The reversal of 3540639698317 is 7138969360453.

3540639698317 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.

It can be written as a sum of positive squares in 2 ways, for example, as 2204687462761 + 1335952235556 = 1484819^2 + 1155834^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3540639698317 is a prime.

It is a super-2 number, since 2×3540639698317² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3540639698347) 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, 43463592 + ... + 43544977.

It is an arithmetic number, because the mean of its divisors is an integer number (885181686895).

Almost surely, 2^{3540639698317} is an apocalyptic number.

It is an amenable number.

3540639698317 is a deficient number, since it is larger than the sum of its proper divisors (87049263).

3540639698317 is an equidigital number, since it uses as much as digits as its factorization.

3540639698317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87049262.

The product of its (nonzero) digits is 88179840, while the sum is 64.

The spelling of 3540639698317 in words is "three trillion, five hundred forty billion, six hundred thirty-nine million, six hundred ninety-eight thousand, three hundred seventeen".