3451240421543 has 8 divisors (see below), whose sum is σ = 3485563890816. Its totient is φ = 3416919948000.

The previous prime is 3451240421537. The next prime is 3451240421597.

3451240421543 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3451240421543 - 2⁸ = 3451240421287 is a prime.

It is a super-2 number, since 2×3451240421543² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3451240421497 and 3451240421506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3451240421443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603178 + ... + 3077768.

It is an arithmetic number, because the mean of its divisors is an integer number (435695486352).

Almost surely, 2^{3451240421543} is an apocalyptic number.

3451240421543 is a deficient number, since it is larger than the sum of its proper divisors (34323469273).

3451240421543 is a wasteful number, since it uses less digits than its factorization.

3451240421543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497865.

The product of its (nonzero) digits is 230400, while the sum is 38.

It can be divided in two parts, 3451240 and 421543, that added together give a palindrome (3872783).

The spelling of 3451240421543 in words is "three trillion, four hundred fifty-one billion, two hundred forty million, four hundred twenty-one thousand, five hundred forty-three".