7181003872 has 48 divisors (see below), whose sum is σ = 16180093440. Its totient is φ = 3073223808.

The previous prime is 7181003839. The next prime is 7181003873. The reversal of 7181003872 is 2783001817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7181003873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138763 + ... + 183349.

It is an arithmetic number, because the mean of its divisors is an integer number (337085280).

Almost surely, 2^7181003872 is an apocalyptic number.

It is an amenable number.

7181003872 is an abundant number, since it is smaller than the sum of its proper divisors (8999089568).

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

7181003872 is a wasteful number, since it uses less digits than its factorization.

7181003872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45323 (or 45315 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 37.

The square root of 7181003872 is about 84740.8040556614. The cubic root of 7181003872 is about 1929.2790735420.

The spelling of 7181003872 in words is "seven billion, one hundred eighty-one million, three thousand, eight hundred seventy-two".