675639050421 has 8 divisors (see below), whose sum is σ = 907945391104. Its totient is φ = 446879371680.

The previous prime is 675639050419. The next prime is 675639050453. The reversal of 675639050421 is 124050936576.

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

It is not a de Polignac number, because 675639050421 - 2¹ = 675639050419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675639050461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886665040 + ... + 886665801.

It is an arithmetic number, because the mean of its divisors is an integer number (113493173888).

Almost surely, 2^675639050421 is an apocalyptic number.

It is an amenable number.

675639050421 is a deficient number, since it is larger than the sum of its proper divisors (232306340683).

675639050421 is a wasteful number, since it uses less digits than its factorization.

675639050421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773330971.

The product of its (nonzero) digits is 1360800, while the sum is 48.

Adding to 675639050421 its reverse (124050936576), we get a palindrome (799689986997).

The spelling of 675639050421 in words is "six hundred seventy-five billion, six hundred thirty-nine million, fifty thousand, four hundred twenty-one".