6400506534 has 8 divisors (see below), whose sum is σ = 12801013080. Its totient is φ = 2133502176.

The previous prime is 6400506523. The next prime is 6400506547. The reversal of 6400506534 is 4356050046.

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

6400506534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 6400506495 and 6400506504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533375539 + ... + 533375550.

It is an arithmetic number, because the mean of its divisors is an integer number (1600126635).

Almost surely, 2^6400506534 is an apocalyptic number.

6400506534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6400506534 is a wasteful number, since it uses less digits than its factorization.

6400506534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066751094.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 6400506534 is about 80003.1657748617. The cubic root of 6400506534 is about 1856.6845138729.

The spelling of 6400506534 in words is "six billion, four hundred million, five hundred six thousand, five hundred thirty-four".