6404367455 has 4 divisors (see below), whose sum is σ = 7685240952. Its totient is φ = 5123493960.

The previous prime is 6404367451. The next prime is 6404367467. The reversal of 6404367455 is 5547634046.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6404367455 - 2² = 6404367451 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 (6404367451) 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, 640436741 + ... + 640436750.

It is an arithmetic number, because the mean of its divisors is an integer number (1921310238).

Almost surely, 2^6404367455 is an apocalyptic number.

6404367455 is a deficient number, since it is larger than the sum of its proper divisors (1280873497).

6404367455 is a wasteful number, since it uses less digits than its factorization.

6404367455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280873496.

The product of its (nonzero) digits is 1209600, while the sum is 44.

The square root of 6404367455 is about 80027.2919384381. The cubic root of 6404367455 is about 1857.0577692955.

The spelling of 6404367455 in words is "six billion, four hundred four million, three hundred sixty-seven thousand, four hundred fifty-five".