6461059691 has 8 divisors (see below), whose sum is σ = 6551067264. Its totient is φ = 6371092800.

The previous prime is 6461059667. The next prime is 6461059723. The reversal of 6461059691 is 1969501646.

It is a happy number.

6461059691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6461059691 - 2¹⁸ = 6460797547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6461059601) 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 7 ways as a sum of consecutive naturals, for example, 457841 + ... + 471741.

It is an arithmetic number, because the mean of its divisors is an integer number (818883408).

Almost surely, 2^6461059691 is an apocalyptic number.

6461059691 is a deficient number, since it is larger than the sum of its proper divisors (90007573).

6461059691 is a wasteful number, since it uses less digits than its factorization.

6461059691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20341.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 6461059691 is about 80380.7171590301. The cubic root of 6461059691 is about 1862.5213129462.

The spelling of 6461059691 in words is "six billion, four hundred sixty-one million, fifty-nine thousand, six hundred ninety-one".