6404352013 has 16 divisors (see below), whose sum is σ = 6875712000. Its totient is φ = 5943704832.

The previous prime is 6404351957. The next prime is 6404352029. The reversal of 6404352013 is 3102534046.

It is not a de Polignac number, because 6404352013 - 2¹³ = 6404343821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404352113) 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, 1231623 + ... + 1236811.

It is an arithmetic number, because the mean of its divisors is an integer number (429732000).

Almost surely, 2^6404352013 is an apocalyptic number.

It is an amenable number.

6404352013 is a deficient number, since it is larger than the sum of its proper divisors (471359987).

6404352013 is a wasteful number, since it uses less digits than its factorization.

6404352013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6204.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 6404352013 is about 80027.1954587939. The cubic root of 6404352013 is about 1857.0562767354.

Adding to 6404352013 its reverse (3102534046), we get a palindrome (9506886059).

The spelling of 6404352013 in words is "six billion, four hundred four million, three hundred fifty-two thousand, thirteen".