3421400556055 has 4 divisors (see below), whose sum is σ = 4105680667272. Its totient is φ = 2737120444840.

The previous prime is 3421400555981. The next prime is 3421400556059. The reversal of 3421400556055 is 5506550041243.

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

It is not a de Polignac number, because 3421400556055 - 2¹¹ = 3421400554007 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3421400555999 and 3421400556017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421400556059) 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, 342140055601 + ... + 342140055610.

It is an arithmetic number, because the mean of its divisors is an integer number (1026420166818).

Almost surely, 2^{3421400556055} is an apocalyptic number.

3421400556055 is a deficient number, since it is larger than the sum of its proper divisors (684280111217).

3421400556055 is an equidigital number, since it uses as much as digits as its factorization.

3421400556055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684280111216.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 3421400556055 its reverse (5506550041243), we get a palindrome (8927950597298).

The spelling of 3421400556055 in words is "three trillion, four hundred twenty-one billion, four hundred million, five hundred fifty-six thousand, fifty-five".