7505421343 has 16 divisors (see below), whose sum is σ = 8757763840. Its totient is φ = 6299384256.

The previous prime is 7505421323. The next prime is 7505421347. The reversal of 7505421343 is 3431245057.

7505421343 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 7505421343 - 2⁵ = 7505421311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7505421299 and 7505421308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7505421347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18196 + ... + 123862.

It is an arithmetic number, because the mean of its divisors is an integer number (547360240).

Almost surely, 2^7505421343 is an apocalyptic number.

7505421343 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

7505421343 is a deficient number, since it is larger than the sum of its proper divisors (1252342497).

7505421343 is a wasteful number, since it uses less digits than its factorization.

7505421343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105886.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 7505421343 is about 86633.8348625986. The cubic root of 7505421343 is about 1957.9053478840.

The spelling of 7505421343 in words is "seven billion, five hundred five million, four hundred twenty-one thousand, three hundred forty-three".