6425414021 has 16 divisors (see below), whose sum is σ = 7239711360. Its totient is φ = 5658206400.

The previous prime is 6425413999. The next prime is 6425414071. The reversal of 6425414021 is 1204145246.

6425414021 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 a de Polignac number, because none of the positive numbers 2^k-6425414021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425414071) 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, 84971 + ... + 141671.

It is an arithmetic number, because the mean of its divisors is an integer number (452481960).

Almost surely, 2^6425414021 is an apocalyptic number.

It is an amenable number.

6425414021 is a deficient number, since it is larger than the sum of its proper divisors (814297339).

6425414021 is a wasteful number, since it uses less digits than its factorization.

6425414021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57116.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 6425414021 is about 80158.6802598446. The cubic root of 6425414021 is about 1859.0898176190.

Adding to 6425414021 its reverse (1204145246), we get a palindrome (7629559267).

The spelling of 6425414021 in words is "six billion, four hundred twenty-five million, four hundred fourteen thousand, twenty-one".