641217147452 has 48 divisors (see below), whose sum is σ = 1283974211520. Its totient is φ = 274477593600.

The previous prime is 641217147437. The next prime is 641217147511. The reversal of 641217147452 is 254741712146.

It is a super-2 number, since 2×641217147452² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150483002 + ... + 150487262.

It is an arithmetic number, because the mean of its divisors is an integer number (26749462740).

Almost surely, 2^641217147452 is an apocalyptic number.

It is an amenable number.

641217147452 is an abundant number, since it is smaller than the sum of its proper divisors (642757064068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641217147452 is a wasteful number, since it uses less digits than its factorization.

641217147452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9462 (or 9460 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

Adding to 641217147452 its reverse (254741712146), we get a palindrome (895958859598).

The spelling of 641217147452 in words is "six hundred forty-one billion, two hundred seventeen million, one hundred forty-seven thousand, four hundred fifty-two".