7975308457 has 4 divisors (see below), whose sum is σ = 7983136080. Its totient is φ = 7967480836.

The previous prime is 7975308347. The next prime is 7975308469. The reversal of 7975308457 is 7548035797.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7975308457 - 2⁷ = 7975308329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7975308398 and 7975308407.

It is not an unprimeable number, because it can be changed into a prime (7975308487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3912283 + ... + 3914320.

It is an arithmetic number, because the mean of its divisors is an integer number (1995784020).

Almost surely, 2^7975308457 is an apocalyptic number.

It is an amenable number.

7975308457 is a deficient number, since it is larger than the sum of its proper divisors (7827623).

7975308457 is a wasteful number, since it uses less digits than its factorization.

7975308457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827622.

The product of its (nonzero) digits is 7408800, while the sum is 55.

The square root of 7975308457 is about 89304.5825084021. The cubic root of 7975308457 is about 1997.9402508616.

The spelling of 7975308457 in words is "seven billion, nine hundred seventy-five million, three hundred eight thousand, four hundred fifty-seven".