7971535748 has 24 divisors (see below), whose sum is σ = 15226021440. Its totient is φ = 3621607520.

The previous prime is 7971535729. The next prime is 7971535777. The reversal of 7971535748 is 8475351797.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7971535693 and 7971535702.

It is an unprimeable number.

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, 45290 + ... + 134142.

It is an arithmetic number, because the mean of its divisors is an integer number (634417560).

Almost surely, 2^7971535748 is an apocalyptic number.

It is an amenable number.

7971535748 is a deficient number, since it is larger than the sum of its proper divisors (7254485692).

7971535748 is a wasteful number, since it uses less digits than its factorization.

7971535748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90907 (or 90905 counting only the distinct ones).

The product of its digits is 7408800, while the sum is 56.

The square root of 7971535748 is about 89283.4573031309. The cubic root of 7971535748 is about 1997.6251601841.

The spelling of 7971535748 in words is "seven billion, nine hundred seventy-one million, five hundred thirty-five thousand, seven hundred forty-eight".