6242749673 has 6 divisors (see below), whose sum is σ = 6610315194. Its totient is φ = 5875222496.

The previous prime is 6242749657. The next prime is 6242749691. The reversal of 6242749673 is 3769472426.

It can be written as a sum of positive squares in only one way, i.e., 5875529104 + 367220569 = 76652^2 + 19163^2 .

It is not a de Polignac number, because 6242749673 - 2⁴ = 6242749657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6242749603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 316190 + ... + 335352.

It is an arithmetic number, because the mean of its divisors is an integer number (1101719199).

Almost surely, 2^6242749673 is an apocalyptic number.

It is an amenable number.

6242749673 is a deficient number, since it is larger than the sum of its proper divisors (367565521).

6242749673 is an frugal number, since it uses more digits than its factorization.

6242749673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38343 (or 19180 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 50.

The square root of 6242749673 is about 79011.0731037112. The cubic root of 6242749673 is about 1841.3031955014.

The spelling of 6242749673 in words is "six billion, two hundred forty-two million, seven hundred forty-nine thousand, six hundred seventy-three".