7150857865 has 8 divisors (see below), whose sum is σ = 8581579848. Its totient is φ = 5720319360.

The previous prime is 7150857851. The next prime is 7150857881. The reversal of 7150857865 is 5687580517.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1012448761 + 6138409104 = 31819^2 + 78348^2 .

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

It is not a de Polignac number, because 7150857865 - 2¹⁹ = 7150333577 is a prime.

It is a super-2 number, since 2×7150857865² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 63655 + ... + 135475.

It is an arithmetic number, because the mean of its divisors is an integer number (1072697481).

Almost surely, 2^7150857865 is an apocalyptic number.

It is an amenable number.

7150857865 is a deficient number, since it is larger than the sum of its proper divisors (1430721983).

7150857865 is a wasteful number, since it uses less digits than its factorization.

7150857865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91739.

The product of its (nonzero) digits is 2352000, while the sum is 52.

The square root of 7150857865 is about 84562.7451363779. The cubic root of 7150857865 is about 1926.5755686857.

The spelling of 7150857865 in words is "seven billion, one hundred fifty million, eight hundred fifty-seven thousand, eight hundred sixty-five".