7421848630249 has 9 divisors (see below), whose sum is σ = 7437494495223. Its totient is φ = 7406235626832.

The previous prime is 7421848630187. The next prime is 7421848630253. The reversal of 7421848630249 is 9420368481247.

The square root of 7421848630249 is 2724307.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7280051196649 + 141797433600 = 2698157^2 + 376560^2 .

It is not a de Polignac number, because 7421848630249 - 2¹³ = 7421848622057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7421848630193 and 7421848630202.

It is not an unprimeable number, because it can be changed into a prime (7421848630649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1424809957 + ... + 1424815165.

It is an arithmetic number, because the mean of its divisors is an integer number (826388277247).

Almost surely, 2^{7421848630249} is an apocalyptic number.

7421848630249 is the 2724307-th square number.

7421848630249 is the 1362154-th centered octagonal number.

It is an amenable number.

7421848630249 is a deficient number, since it is larger than the sum of its proper divisors (15645864974).

7421848630249 is an frugal number, since it uses more digits than its factorization.

7421848630249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11464 (or 5732 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 58.

The spelling of 7421848630249 in words is "seven trillion, four hundred twenty-one billion, eight hundred forty-eight million, six hundred thirty thousand, two hundred forty-nine".