6400937463 has 4 divisors (see below), whose sum is σ = 8534583288. Its totient is φ = 4267291640.

The previous prime is 6400937441. The next prime is 6400937483. The reversal of 6400937463 is 3647390046.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6400937463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6400937423) 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, 1066822908 + ... + 1066822913.

It is an arithmetic number, because the mean of its divisors is an integer number (2133645822).

Almost surely, 2^6400937463 is an apocalyptic number.

6400937463 is a deficient number, since it is larger than the sum of its proper divisors (2133645825).

6400937463 is a wasteful number, since it uses less digits than its factorization.

6400937463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133645824.

The product of its (nonzero) digits is 326592, while the sum is 42.

The square root of 6400937463 is about 80005.8589292059. The cubic root of 6400937463 is about 1856.7261814733.

The spelling of 6400937463 in words is "six billion, four hundred million, nine hundred thirty-seven thousand, four hundred sixty-three".