6137868641 has 4 divisors (see below), whose sum is σ = 6139319472. Its totient is φ = 6136417812.

The previous prime is 6137868637. The next prime is 6137868643. The reversal of 6137868641 is 1468687316.

6137868641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 6137868641 - 2² = 6137868637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6137868641.

It is not an unprimeable number, because it can be changed into a prime (6137868643) 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, 719051 + ... + 727536.

It is an arithmetic number, because the mean of its divisors is an integer number (1534829868).

Almost surely, 2^6137868641 is an apocalyptic number.

It is an amenable number.

6137868641 is a deficient number, since it is larger than the sum of its proper divisors (1450831).

6137868641 is a wasteful number, since it uses less digits than its factorization.

6137868641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450830.

The product of its digits is 1161216, while the sum is 50.

The square root of 6137868641 is about 78344.5508060388. The cubic root of 6137868641 is about 1830.9333271473.

The spelling of 6137868641 in words is "six billion, one hundred thirty-seven million, eight hundred sixty-eight thousand, six hundred forty-one".