641217488 has 40 divisors (see below), whose sum is σ = 1258981920. Its totient is φ = 316342400.

The previous prime is 641217431. The next prime is 641217517. The reversal of 641217488 is 884712146.

It is a super-2 number, since 2×641217488² = 822319733834060288, 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676631 + ... + 677577.

It is an arithmetic number, because the mean of its divisors is an integer number (31474548).

Almost surely, 2^641217488 is an apocalyptic number.

It is an amenable number.

641217488 is a deficient number, since it is larger than the sum of its proper divisors (617764432).

641217488 is a wasteful number, since it uses less digits than its factorization.

641217488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1475 (or 1469 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 641217488 is about 25322.2725678404. The cubic root of 641217488 is about 862.3199878612.

The spelling of 641217488 in words is "six hundred forty-one million, two hundred seventeen thousand, four hundred eighty-eight".