7481002144 has 72 divisors (see below), whose sum is σ = 18501636384. Its totient is φ = 2914665600.

The previous prime is 7481002141. The next prime is 7481002159. The reversal of 7481002144 is 4412001847.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7481002141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110902 + ... + 165109.

It is an arithmetic number, because the mean of its divisors is an integer number (256967172).

Almost surely, 2^7481002144 is an apocalyptic number.

It is an amenable number.

7481002144 is an abundant number, since it is smaller than the sum of its proper divisors (11020634240).

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

7481002144 is a wasteful number, since it uses less digits than its factorization.

7481002144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276050 (or 276031 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 7481002144 is about 86492.7866587729. The cubic root of 7481002144 is about 1955.7796655193.

The spelling of 7481002144 in words is "seven billion, four hundred eighty-one million, two thousand, one hundred forty-four".