7488941247649 has 9 divisors (see below), whose sum is σ = 7580486456049. Its totient is φ = 7398488639220.

The previous prime is 7488941247647. The next prime is 7488941247703. The reversal of 7488941247649 is 9467421498847.

The square root of 7488941247649 is 2736593.

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

It is not a de Polignac number, because 7488941247649 - 2¹ = 7488941247647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7488941247647) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 227120734 + ... + 227153704.

Almost surely, 2^{7488941247649} is an apocalyptic number.

7488941247649 is the 2736593-rd square number.

7488941247649 is the 1368297-th centered octagonal number.

It is an amenable number.

7488941247649 is a deficient number, since it is larger than the sum of its proper divisors (91545208400).

7488941247649 is an frugal number, since it uses more digits than its factorization.

7488941247649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66108 (or 33054 counting only the distinct ones).

The product of its digits is 780337152, while the sum is 73.

The spelling of 7488941247649 in words is "seven trillion, four hundred eighty-eight billion, nine hundred forty-one million, two hundred forty-seven thousand, six hundred forty-nine".