641682139308 has 48 divisors (see below), whose sum is σ = 1728094497024. Its totient is φ = 181522526400.

The previous prime is 641682139303. The next prime is 641682139361. The reversal of 641682139308 is 803931286146.

641682139308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (641682139303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37808710 + ... + 37825677.

It is an arithmetic number, because the mean of its divisors is an integer number (36001968688).

Almost surely, 2^641682139308 is an apocalyptic number.

It is an amenable number.

641682139308 is an abundant number, since it is smaller than the sum of its proper divisors (1086412357716).

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

641682139308 is a wasteful number, since it uses less digits than its factorization.

641682139308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75634502 (or 75634500 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 641682139308 in words is "six hundred forty-one billion, six hundred eighty-two million, one hundred thirty-nine thousand, three hundred eight".