6244395961 has 4 divisors (see below), whose sum is σ = 6573048400. Its totient is φ = 5915743524.

The previous prime is 6244395959. The next prime is 6244395991. The reversal of 6244395961 is 1695934426.

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 6244395961 - 2¹ = 6244395959 is a prime.

It is a super-2 number, since 2×6244395961² = 77984961835506227042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6244395901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164326191 + ... + 164326228.

It is an arithmetic number, because the mean of its divisors is an integer number (1643262100).

Almost surely, 2^6244395961 is an apocalyptic number.

It is an amenable number.

6244395961 is a deficient number, since it is larger than the sum of its proper divisors (328652439).

6244395961 is a wasteful number, since it uses less digits than its factorization.

6244395961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328652438.

The product of its digits is 1399680, while the sum is 49.

The square root of 6244395961 is about 79021.4905010023. The cubic root of 6244395961 is about 1841.4650391914.

It can be divided in two parts, 62443 and 95961, that added together give a square (158404 = 398²).

The spelling of 6244395961 in words is "six billion, two hundred forty-four million, three hundred ninety-five thousand, nine hundred sixty-one".