641391529039 has 6 divisors (see below), whose sum is σ = 653721593336. Its totient is φ = 629289799320.

The previous prime is 641391528923. The next prime is 641391529061. The reversal of 641391529039 is 930925193146.

641391529039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641391529039 - 2¹⁷ = 641391397967 is a prime.

It is a super-2 number, since 2×641391529039² (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 (641391529739) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114164427 + ... + 114170044.

Almost surely, 2^641391529039 is an apocalyptic number.

641391529039 is a deficient number, since it is larger than the sum of its proper divisors (12330064297).

641391529039 is an equidigital number, since it uses as much as digits as its factorization.

641391529039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228334577 (or 228334524 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 52.

The spelling of 641391529039 in words is "six hundred forty-one billion, three hundred ninety-one million, five hundred twenty-nine thousand, thirty-nine".