7306391481 has 8 divisors (see below), whose sum is σ = 9749786880. Its totient is φ = 4866961872.

The previous prime is 7306391471. The next prime is 7306391497. The reversal of 7306391481 is 1841936037.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7306391481 - 2⁷ = 7306391353 is a prime.

It is a super-2 number, since 2×7306391481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7306391471) 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 7 ways as a sum of consecutive naturals, for example, 987145 + ... + 994518.

It is an arithmetic number, because the mean of its divisors is an integer number (1218723360).

Almost surely, 2^7306391481 is an apocalyptic number.

It is an amenable number.

7306391481 is a deficient number, since it is larger than the sum of its proper divisors (2443395399).

7306391481 is a wasteful number, since it uses less digits than its factorization.

7306391481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982895.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 7306391481 is about 85477.4325831093. The cubic root of 7306391481 is about 1940.4433996424.

The spelling of 7306391481 in words is "seven billion, three hundred six million, three hundred ninety-one thousand, four hundred eighty-one".