3440628128125 has 12 divisors (see below), whose sum is σ = 4300509913812. Its totient is φ = 2752502500000.

The previous prime is 3440628128111. The next prime is 3440628128141. The reversal of 3440628128125 is 5218218260443.

It can be written as a sum of positive squares in 6 ways, for example, as 1651438316889 + 1789189811236 = 1285083^2 + 1337606^2 .

It is not a de Polignac number, because 3440628128125 - 2²³ = 3440619739517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 550497376 + ... + 550503625.

It is an arithmetic number, because the mean of its divisors is an integer number (358375826151).

Almost surely, 2^{3440628128125} is an apocalyptic number.

It is an amenable number.

3440628128125 is a deficient number, since it is larger than the sum of its proper divisors (859881785687).

3440628128125 is an frugal number, since it uses more digits than its factorization.

3440628128125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101001026 (or 1101001006 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 3440628128125 in words is "three trillion, four hundred forty billion, six hundred twenty-eight million, one hundred twenty-eight thousand, one hundred twenty-five".