7278182481 has 16 divisors (see below), whose sum is σ = 9741932928. Its totient is φ = 4833312000.

The previous prime is 7278182453. The next prime is 7278182489. The reversal of 7278182481 is 1842818727.

It is not a de Polignac number, because 7278182481 - 2⁹ = 7278181969 is a prime.

It is a super-2 number, since 2×7278182481² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7278182481.

It is not an unprimeable number, because it can be changed into a prime (7278182489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954996 + ... + 962586.

It is an arithmetic number, because the mean of its divisors is an integer number (608870808).

Almost surely, 2^7278182481 is an apocalyptic number.

It is an amenable number.

7278182481 is a deficient number, since it is larger than the sum of its proper divisors (2463750447).

7278182481 is a wasteful number, since it uses less digits than its factorization.

7278182481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8792.

The product of its digits is 401408, while the sum is 48.

The square root of 7278182481 is about 85312.2645403344. The cubic root of 7278182481 is about 1937.9429147442.

The spelling of 7278182481 in words is "seven billion, two hundred seventy-eight million, one hundred eighty-two thousand, four hundred eighty-one".