7481518940 has 36 divisors (see below), whose sum is σ = 18276284376. Its totient is φ = 2565091872.

The previous prime is 7481518937. The next prime is 7481518963. The reversal of 7481518940 is 498151847.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3816122 + ... + 3818081.

It is an arithmetic number, because the mean of its divisors is an integer number (507674566).

Almost surely, 2^7481518940 is an apocalyptic number.

7481518940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7481518940 is an abundant number, since it is smaller than the sum of its proper divisors (10794765436).

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

7481518940 is a wasteful number, since it uses less digits than its factorization.

7481518940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634226 (or 7634217 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 47.

The square root of 7481518940 is about 86495.7741164272. The cubic root of 7481518940 is about 1955.8247002983.

The spelling of 7481518940 in words is "seven billion, four hundred eighty-one million, five hundred eighteen thousand, nine hundred forty".