6400912433 has 2 divisors, whose sum is σ = 6400912434. Its totient is φ = 6400912432.

The previous prime is 6400912381. The next prime is 6400912517. The reversal of 6400912433 is 3342190046.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6062646769 + 338265664 = 77863^2 + 18392^2 .

It is a cyclic number.

It is not a de Polignac number, because 6400912433 - 2¹⁰ = 6400911409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6400912433.

It is not a weakly prime, because it can be changed into another prime (6400912633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3200456216 + 3200456217.

It is an arithmetic number, because the mean of its divisors is an integer number (3200456217).

Almost surely, 2^6400912433 is an apocalyptic number.

It is an amenable number.

6400912433 is a deficient number, since it is larger than the sum of its proper divisors (1).

6400912433 is an equidigital number, since it uses as much as digits as its factorization.

6400912433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 6400912433 is about 80005.7025030091. The cubic root of 6400912433 is about 1856.7237613113.

The spelling of 6400912433 in words is "six billion, four hundred million, nine hundred twelve thousand, four hundred thirty-three".