3641739228405 has 24 divisors (see below), whose sum is σ = 6312472634520. Its totient is φ = 1942222571520.

The previous prime is 3641739228401. The next prime is 3641739228419. The reversal of 3641739228405 is 5048229371463.

3641739228405 is a `hidden beast` number, since 3 + 6 + 4 + 1 + 7 + 3 + 9 + 228 + 405 = 666.

3641739228405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 273167203716 + 3368572024689 = 522654^2 + 1835367^2 .

It is not a de Polignac number, because 3641739228405 - 2² = 3641739228401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641739228401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1583461 + ... + 3129029.

It is an arithmetic number, because the mean of its divisors is an integer number (263019693105).

It is a 1-persistent number, because it is pandigital, but 2⋅3641739228405 = 7283478456810 is not.

Almost surely, 2^{3641739228405} is an apocalyptic number.

It is an amenable number.

3641739228405 is a deficient number, since it is larger than the sum of its proper divisors (2670733406115).

3641739228405 is a wasteful number, since it uses less digits than its factorization.

3641739228405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597941 (or 1597938 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 3641739228405 in words is "three trillion, six hundred forty-one billion, seven hundred thirty-nine million, two hundred twenty-eight thousand, four hundred five".