7481653509 has 16 divisors (see below), whose sum is σ = 11355554304. Its totient is φ = 4337190000.

The previous prime is 7481653489. The next prime is 7481653511. The reversal of 7481653509 is 9053561847.

It is not a de Polignac number, because 7481653509 - 2¹¹ = 7481651461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7481653519) 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 15 ways as a sum of consecutive naturals, for example, 4927867 + ... + 4929384.

It is an arithmetic number, because the mean of its divisors is an integer number (709722144).

Almost surely, 2^7481653509 is an apocalyptic number.

It is an amenable number.

7481653509 is a deficient number, since it is larger than the sum of its proper divisors (3873900795).

7481653509 is a wasteful number, since it uses less digits than its factorization.

7481653509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9857288.

The product of its (nonzero) digits is 907200, while the sum is 48.

The square root of 7481653509 is about 86496.5520064239. The cubic root of 7481653509 is about 1955.8364266068.

The spelling of 7481653509 in words is "seven billion, four hundred eighty-one million, six hundred fifty-three thousand, five hundred nine".