7428187513 has 8 divisors (see below), whose sum is σ = 7697135880. Its totient is φ = 7160092800.

The previous prime is 7428187483. The next prime is 7428187537. The reversal of 7428187513 is 3157818247.

It can be written as a sum of positive squares in 4 ways, for example, as 1635150969 + 5793036544 = 40437^2 + 76112^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7428187513 - 2²¹ = 7426090361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7428187573) 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 7 ways as a sum of consecutive naturals, for example, 195670 + ... + 230527.

It is an arithmetic number, because the mean of its divisors is an integer number (962141985).

Almost surely, 2^7428187513 is an apocalyptic number.

It is an amenable number.

7428187513 is a deficient number, since it is larger than the sum of its proper divisors (268948367).

7428187513 is a wasteful number, since it uses less digits than its factorization.

7428187513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426827.

The product of its digits is 376320, while the sum is 46.

The square root of 7428187513 is about 86186.9335398354. The cubic root of 7428187513 is about 1951.1662988327.

The spelling of 7428187513 in words is "seven billion, four hundred twenty-eight million, one hundred eighty-seven thousand, five hundred thirteen".