6404406063 has 8 divisors (see below), whose sum is σ = 9315499776. Its totient is φ = 3881458200.

The previous prime is 6404406037. The next prime is 6404406089. The reversal of 6404406063 is 3606044046.

It is an interprime number because it is at equal distance from previous prime (6404406037) and next prime (6404406089).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6404406063 - 2⁵ = 6404406031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 194072911 = 6404406063 / (6 + 4 + 0 + 4 + 4 + 0 + 6 + 0 + 6 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6404406863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97036423 + ... + 97036488.

It is an arithmetic number, because the mean of its divisors is an integer number (1164437472).

Almost surely, 2^6404406063 is an apocalyptic number.

6404406063 is a deficient number, since it is larger than the sum of its proper divisors (2911093713).

6404406063 is a wasteful number, since it uses less digits than its factorization.

6404406063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194072925.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 6404406063 is about 80027.5331557833. The cubic root of 6404406063 is about 1857.0615009751.

The spelling of 6404406063 in words is "six billion, four hundred four million, four hundred six thousand, sixty-three".