6461158837 has 4 divisors (see below), whose sum is σ = 7384181536. Its totient is φ = 5538136140.

The previous prime is 6461158811. The next prime is 6461158841. The reversal of 6461158837 is 7388511646.

It is a happy number.

6461158837 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 6461158837 - 2¹¹ = 6461156789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461158637) 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, 461511339 + ... + 461511352.

It is an arithmetic number, because the mean of its divisors is an integer number (1846045384).

Almost surely, 2^6461158837 is an apocalyptic number.

It is an amenable number.

6461158837 is a deficient number, since it is larger than the sum of its proper divisors (923022699).

6461158837 is an equidigital number, since it uses as much as digits as its factorization.

6461158837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923022698.

The product of its digits is 967680, while the sum is 49.

The square root of 6461158837 is about 80381.3338841799. Note that the first 3 decimals coincide. The cubic root of 6461158837 is about 1862.5308397938.

The spelling of 6461158837 in words is "six billion, four hundred sixty-one million, one hundred fifty-eight thousand, eight hundred thirty-seven".