7657971317 has 8 divisors (see below), whose sum is σ = 8109502272. Its totient is φ = 7206558400.

The previous prime is 7657971311. The next prime is 7657971361. The reversal of 7657971317 is 7131797567.

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

It is not a de Polignac number, because 7657971317 - 2¹⁶ = 7657905781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7657971311) 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 7 ways as a sum of consecutive naturals, for example, 128192 + ... + 178182.

It is an arithmetic number, because the mean of its divisors is an integer number (1013687784).

Almost surely, 2^7657971317 is an apocalyptic number.

It is an amenable number.

7657971317 is a deficient number, since it is larger than the sum of its proper divisors (451530955).

7657971317 is a wasteful number, since it uses less digits than its factorization.

7657971317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59019.

The product of its digits is 1944810, while the sum is 53.

The square root of 7657971317 is about 87509.8355443547. The cubic root of 7657971317 is about 1971.0814848225.

The spelling of 7657971317 in words is "seven billion, six hundred fifty-seven million, nine hundred seventy-one thousand, three hundred seventeen".