6461331875 has 10 divisors (see below), whose sum is σ = 8074081092. Its totient is φ = 5169065000.

The previous prime is 6461331871. The next prime is 6461331889. The reversal of 6461331875 is 5781331646.

It is not a de Polignac number, because 6461331875 - 2² = 6461331871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6461331871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5168441 + ... + 5169690.

Almost surely, 2^6461331875 is an apocalyptic number.

6461331875 is a deficient number, since it is larger than the sum of its proper divisors (1612749217).

6461331875 is an equidigital number, since it uses as much as digits as its factorization.

6461331875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10338151 (or 10338136 counting only the distinct ones).

The product of its digits is 362880, while the sum is 44.

The square root of 6461331875 is about 80382.4102338316. The cubic root of 6461331875 is about 1862.5474666221.

The spelling of 6461331875 in words is "six billion, four hundred sixty-one million, three hundred thirty-one thousand, eight hundred seventy-five".