6354712421 has 4 divisors (see below), whose sum is σ = 6728519052. Its totient is φ = 5980905792.

The previous prime is 6354712391. The next prime is 6354712439. The reversal of 6354712421 is 1242174536.

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 4988596900 + 1366115521 = 70630^2 + 36961^2 .

It is a cyclic number.

It is not a de Polignac number, because 6354712421 - 2¹⁴ = 6354696037 is a prime.

It is a super-2 number, since 2×6354712421² = 80764739907223362482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6354712451) 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, 186903290 + ... + 186903323.

It is an arithmetic number, because the mean of its divisors is an integer number (1682129763).

Almost surely, 2^6354712421 is an apocalyptic number.

It is an amenable number.

6354712421 is a deficient number, since it is larger than the sum of its proper divisors (373806631).

6354712421 is a wasteful number, since it uses less digits than its factorization.

6354712421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373806630.

The product of its digits is 40320, while the sum is 35.

The square root of 6354712421 is about 79716.4501279378. The cubic root of 6354712421 is about 1852.2458647169.

Adding to 6354712421 its reverse (1242174536), we get a palindrome (7596886957).

The spelling of 6354712421 in words is "six billion, three hundred fifty-four million, seven hundred twelve thousand, four hundred twenty-one".