6404268071 has 4 divisors (see below), whose sum is σ = 6404429232. Its totient is φ = 6404106912.

The previous prime is 6404268043. The next prime is 6404268109. The reversal of 6404268071 is 1708624046.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6404268071 - 2¹⁴ = 6404251687 is a prime.

It is a super-2 number, since 2×6404268071² = 82029299050460122082, which 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 (6404268011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26150 + ... + 116156.

It is an arithmetic number, because the mean of its divisors is an integer number (1601107308).

Almost surely, 2^6404268071 is an apocalyptic number.

6404268071 is a deficient number, since it is larger than the sum of its proper divisors (161161).

6404268071 is an equidigital number, since it uses as much as digits as its factorization.

6404268071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161160.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 6404268071 is about 80026.6709978617. The cubic root of 6404268071 is about 1857.0481632058.

The spelling of 6404268071 in words is "six billion, four hundred four million, two hundred sixty-eight thousand, seventy-one".