6249696861 has 8 divisors (see below), whose sum is σ = 8335093984. Its totient is φ = 4165382160.

The previous prime is 6249696853. The next prime is 6249696883. The reversal of 6249696861 is 1686969426.

It is a happy number.

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

It is not a de Polignac number, because 6249696861 - 2³ = 6249696853 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 (6249696851) 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, 257035 + ... + 280296.

It is an arithmetic number, because the mean of its divisors is an integer number (1041886748).

Almost surely, 2^6249696861 is an apocalyptic number.

It is an amenable number.

6249696861 is a deficient number, since it is larger than the sum of its proper divisors (2085397123).

6249696861 is a wasteful number, since it uses less digits than its factorization.

6249696861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541211.

The product of its digits is 6718464, while the sum is 57.

The square root of 6249696861 is about 79055.0242615863. The cubic root of 6249696861 is about 1841.9859682087.

The spelling of 6249696861 in words is "six billion, two hundred forty-nine million, six hundred ninety-six thousand, eight hundred sixty-one".