7286742578 has 8 divisors (see below), whose sum is σ = 10931459868. Its totient is φ = 3642922624.

The previous prime is 7286742571. The next prime is 7286742607. The reversal of 7286742578 is 8752476827.

It can be written as a sum of positive squares in 2 ways, for example, as 7080044449 + 206698129 = 84143^2 + 14377^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7286742571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203651 + ... + 236742.

Almost surely, 2^7286742578 is an apocalyptic number.

7286742578 is a deficient number, since it is larger than the sum of its proper divisors (3644717290).

7286742578 is a wasteful number, since it uses less digits than its factorization.

7286742578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448668.

The product of its digits is 10536960, while the sum is 56.

The square root of 7286742578 is about 85362.4190027438. The cubic root of 7286742578 is about 1938.7023754116.

The spelling of 7286742578 in words is "seven billion, two hundred eighty-six million, seven hundred forty-two thousand, five hundred seventy-eight".