641352412501 has 4 divisors (see below), whose sum is σ = 644228432512. Its totient is φ = 638476392492.

The previous prime is 641352412457. The next prime is 641352412537. The reversal of 641352412501 is 105214253146.

641352412501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 641352412501 - 2¹⁷ = 641352281429 is a prime.

It is a super-2 number, since 2×641352412501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641352412301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1438009671 + ... + 1438010116.

It is an arithmetic number, because the mean of its divisors is an integer number (161057108128).

Almost surely, 2^641352412501 is an apocalyptic number.

It is an amenable number.

641352412501 is a deficient number, since it is larger than the sum of its proper divisors (2876020011).

641352412501 is a wasteful number, since it uses less digits than its factorization.

641352412501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876020010.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 641352412501 its reverse (105214253146), we get a palindrome (746566665647).

The spelling of 641352412501 in words is "six hundred forty-one billion, three hundred fifty-two million, four hundred twelve thousand, five hundred one".