3440640331151 has 4 divisors (see below), whose sum is σ = 3441323138400. Its totient is φ = 3439957523904.

The previous prime is 3440640331049. The next prime is 3440640331159. The reversal of 3440640331151 is 1511330460443.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3440640331151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440640331159) 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, 341396066 + ... + 341406143.

It is an arithmetic number, because the mean of its divisors is an integer number (860330784600).

Almost surely, 2^{3440640331151} is an apocalyptic number.

3440640331151 is a deficient number, since it is larger than the sum of its proper divisors (682807249).

3440640331151 is an equidigital number, since it uses as much as digits as its factorization.

3440640331151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682807248.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 3440640331151 its reverse (1511330460443), we get a palindrome (4951970791594).

The spelling of 3440640331151 in words is "three trillion, four hundred forty billion, six hundred forty million, three hundred thirty-one thousand, one hundred fifty-one".