6421652341 has 4 divisors (see below), whose sum is σ = 6915625612. Its totient is φ = 5927679072.

The previous prime is 6421652339. The next prime is 6421652353. The reversal of 6421652341 is 1432561246.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4376351716 + 2045300625 = 66154^2 + 45225^2 .

It is a cyclic number.

It is not a de Polignac number, because 6421652341 - 2¹ = 6421652339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6421652297 and 6421652306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6421652311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246986616 + ... + 246986641.

It is an arithmetic number, because the mean of its divisors is an integer number (1728906403).

Almost surely, 2^6421652341 is an apocalyptic number.

It is an amenable number.

6421652341 is a deficient number, since it is larger than the sum of its proper divisors (493973271).

6421652341 is a wasteful number, since it uses less digits than its factorization.

6421652341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493973270.

The product of its digits is 34560, while the sum is 34.

The square root of 6421652341 is about 80135.2128655063. The cubic root of 6421652341 is about 1858.7269530046.

The spelling of 6421652341 in words is "six billion, four hundred twenty-one million, six hundred fifty-two thousand, three hundred forty-one".