6461249217 has 8 divisors (see below), whose sum is σ = 8989564224. Its totient is φ = 4120216848.

The previous prime is 6461249167. The next prime is 6461249219. The reversal of 6461249217 is 7129421646.

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

It is not a de Polignac number, because 6461249217 - 2¹⁰ = 6461248193 is a prime.

It is a super-2 number, since 2×6461249217² = 83495482888366226178, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6461249219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46820578 + ... + 46820715.

It is an arithmetic number, because the mean of its divisors is an integer number (1123695528).

Almost surely, 2^6461249217 is an apocalyptic number.

It is an amenable number.

6461249217 is a deficient number, since it is larger than the sum of its proper divisors (2528315007).

6461249217 is a wasteful number, since it uses less digits than its factorization.

6461249217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93641319.

The product of its digits is 145152, while the sum is 42.

The square root of 6461249217 is about 80381.8960774129. The cubic root of 6461249217 is about 1862.5395242397.

The spelling of 6461249217 in words is "six billion, four hundred sixty-one million, two hundred forty-nine thousand, two hundred seventeen".