641464415 has 8 divisors (see below), whose sum is σ = 810270960. Its totient is φ = 486162432.

The previous prime is 641464409. The next prime is 641464463. The reversal of 641464415 is 514464146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641464415 - 2¹² = 641460319 is a prime.

It is a super-2 number, since 2×641464415² = 822953191422584450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3376034 + ... + 3376223.

It is an arithmetic number, because the mean of its divisors is an integer number (101283870).

Almost surely, 2^641464415 is an apocalyptic number.

641464415 is a deficient number, since it is larger than the sum of its proper divisors (168806545).

641464415 is a wasteful number, since it uses less digits than its factorization.

641464415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6752281.

The product of its digits is 46080, while the sum is 35.

The square root of 641464415 is about 25327.1477865156. The cubic root of 641464415 is about 862.4306641735.

The spelling of 641464415 in words is "six hundred forty-one million, four hundred sixty-four thousand, four hundred fifteen".