6404260606240 has 48 divisors (see below), whose sum is σ = 17291503639872. Its totient is φ = 2195746493184.

The previous prime is 6404260606169. The next prime is 6404260606253. The reversal of 6404260606240 is 426060624046.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 6404260606193 and 6404260606202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2859043794 + ... + 2859046033.

It is an arithmetic number, because the mean of its divisors is an integer number (360239659164).

Almost surely, 2^{6404260606240} is an apocalyptic number.

It is an amenable number.

6404260606240 is an abundant number, since it is smaller than the sum of its proper divisors (10887243033632).

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

6404260606240 is a wasteful number, since it uses less digits than its factorization.

6404260606240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5718089849 (or 5718089841 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 6404260606240 in words is "six trillion, four hundred four billion, two hundred sixty million, six hundred six thousand, two hundred forty".