6143663401 has 4 divisors (see below), whose sum is σ = 6147813204. Its totient is φ = 6139513600.

The previous prime is 6143663353. The next prime is 6143663411. The reversal of 6143663401 is 1043663416.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4953344400 + 1190319001 = 70380^2 + 34501^2 .

It is a cyclic number.

It is not a de Polignac number, because 6143663401 - 2²³ = 6135274793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6143663411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072680 + ... + 2075641.

It is an arithmetic number, because the mean of its divisors is an integer number (1536953301).

Almost surely, 2^6143663401 is an apocalyptic number.

It is an amenable number.

6143663401 is a deficient number, since it is larger than the sum of its proper divisors (4149803).

6143663401 is a wasteful number, since it uses less digits than its factorization.

6143663401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149802.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 6143663401 is about 78381.5246151796. The cubic root of 6143663401 is about 1831.5093404546.

The spelling of 6143663401 in words is "six billion, one hundred forty-three million, six hundred sixty-three thousand, four hundred one".