6401246361 has 4 divisors (see below), whose sum is σ = 8534995152. Its totient is φ = 4267497572.

The previous prime is 6401246347. The next prime is 6401246393. The reversal of 6401246361 is 1636421046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6401246361 - 2¹⁰ = 6401245337 is a prime.

It is a super-4 number, since 4×6401246361⁴ (a number of 40 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (6401242361) 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, 1066874391 + ... + 1066874396.

It is an arithmetic number, because the mean of its divisors is an integer number (2133748788).

Almost surely, 2^6401246361 is an apocalyptic number.

It is an amenable number.

6401246361 is a deficient number, since it is larger than the sum of its proper divisors (2133748791).

6401246361 is a wasteful number, since it uses less digits than its factorization.

6401246361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133748790.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6401246361 is about 80007.7893770350. The cubic root of 6401246361 is about 1856.7560484410.

The spelling of 6401246361 in words is "six billion, four hundred one million, two hundred forty-six thousand, three hundred sixty-one".