7975711645 has 32 divisors (see below), whose sum is σ = 10547159040. Its totient is φ = 5741736000.

The previous prime is 7975711603. The next prime is 7975711663. The reversal of 7975711645 is 5461175797.

It is not a de Polignac number, because 7975711645 - 2¹¹ = 7975709597 is a prime.

It is a super-4 number, since 4×7975711645⁴ (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 7975711592 and 7975711601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3450040 + ... + 3452350.

It is an arithmetic number, because the mean of its divisors is an integer number (329598720).

Almost surely, 2^7975711645 is an apocalyptic number.

It is an amenable number.

7975711645 is a deficient number, since it is larger than the sum of its proper divisors (2571447395).

7975711645 is a wasteful number, since it uses less digits than its factorization.

7975711645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937.

The product of its digits is 1852200, while the sum is 52.

The square root of 7975711645 is about 89306.8398556348. The cubic root of 7975711645 is about 1997.9739186069.

The spelling of 7975711645 in words is "seven billion, nine hundred seventy-five million, seven hundred eleven thousand, six hundred forty-five".