6415420636 has 12 divisors (see below), whose sum is σ = 11715116112. Its totient is φ = 3068244608.

The previous prime is 6415420631. The next prime is 6415420657. The reversal of 6415420636 is 6360245146.

It is a junction number, because it is equal to n+sod(n) for n = 6415420595 and 6415420604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6415420631) 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, 34866325 + ... + 34866508.

It is an arithmetic number, because the mean of its divisors is an integer number (976259676).

Almost surely, 2^6415420636 is an apocalyptic number.

It is an amenable number.

6415420636 is a deficient number, since it is larger than the sum of its proper divisors (5299695476).

6415420636 is a wasteful number, since it uses less digits than its factorization.

6415420636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69732860 (or 69732858 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 6415420636 is about 80096.3209891690. The cubic root of 6415420636 is about 1858.1255093127.

The spelling of 6415420636 in words is "six billion, four hundred fifteen million, four hundred twenty thousand, six hundred thirty-six".