7971242036 has 24 divisors (see below), whose sum is σ = 14002632000. Its totient is φ = 3970518464.

The previous prime is 7971241981. The next prime is 7971242077. The reversal of 7971242036 is 6302421797.

It is a junction number, because it is equal to n+sod(n) for n = 7971241984 and 7971242002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352945 + ... + 1358823.

It is an arithmetic number, because the mean of its divisors is an integer number (583443000).

Almost surely, 2^7971242036 is an apocalyptic number.

It is an amenable number.

7971242036 is a deficient number, since it is larger than the sum of its proper divisors (6031389964).

7971242036 is a wasteful number, since it uses less digits than its factorization.

7971242036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7111 (or 7109 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 7971242036 is about 89281.8124592013. The cubic root of 7971242036 is about 1997.6006256525.

The spelling of 7971242036 in words is "seven billion, nine hundred seventy-one million, two hundred forty-two thousand, thirty-six".