3400460728321 has 4 divisors (see below), whose sum is σ = 3430553301252. Its totient is φ = 3370368155392.

The previous prime is 3400460728241. The next prime is 3400460728337. The reversal of 3400460728321 is 1238270640043.

It is a happy number.

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 373643677696 + 3026817050625 = 611264^2 + 1739775^2 .

It is a cyclic number.

It is not a de Polignac number, because 3400460728321 - 2¹⁵ = 3400460695553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3400460728381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15046286296 + ... + 15046286521.

It is an arithmetic number, because the mean of its divisors is an integer number (857638325313).

Almost surely, 2^{3400460728321} is an apocalyptic number.

It is an amenable number.

3400460728321 is a deficient number, since it is larger than the sum of its proper divisors (30092572931).

3400460728321 is a wasteful number, since it uses less digits than its factorization.

3400460728321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30092572930.

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 3400460728321 in words is "three trillion, four hundred billion, four hundred sixty million, seven hundred twenty-eight thousand, three hundred twenty-one".