7478720539368 has 64 divisors (see below), whose sum is σ = 20135346215040. Its totient is φ = 2301107138304.

The previous prime is 7478720539361. The next prime is 7478720539417. The reversal of 7478720539368 is 8639350278747.

It is a super-3 number, since 3×7478720539368³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7478720539361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23483005 + ... + 23799347.

It is an arithmetic number, because the mean of its divisors is an integer number (314614784610).

Almost surely, 2^{7478720539368} is an apocalyptic number.

7478720539368 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7478720539368 is an abundant number, since it is smaller than the sum of its proper divisors (12656625675672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7478720539368 is a wasteful number, since it uses less digits than its factorization.

7478720539368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392138 (or 392134 counting only the distinct ones).

The product of its (nonzero) digits is 426746880, while the sum is 69.

The spelling of 7478720539368 in words is "seven trillion, four hundred seventy-eight billion, seven hundred twenty million, five hundred thirty-nine thousand, three hundred sixty-eight".