6975200421 has 36 divisors (see below), whose sum is σ = 11769451200. Its totient is φ = 3969091728.

The previous prime is 6975200383. The next prime is 6975200429. The reversal of 6975200421 is 1240025796.

6975200421 is a `hidden beast` number, since 6 + 97 + 520 + 0 + 42 + 1 = 666.

It is not a de Polignac number, because 6975200421 - 2¹³ = 6975192229 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6975200429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72310 + ... + 138488.

It is an arithmetic number, because the mean of its divisors is an integer number (326929200).

Almost surely, 2^6975200421 is an apocalyptic number.

It is an amenable number.

6975200421 is a deficient number, since it is larger than the sum of its proper divisors (4794250779).

6975200421 is a wasteful number, since it uses less digits than its factorization.

6975200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66438 (or 66428 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 6975200421 is about 83517.6653229722. The cubic root of 6975200421 is about 1910.6694674479.

The spelling of 6975200421 in words is "six billion, nine hundred seventy-five million, two hundred thousand, four hundred twenty-one".