7965267656 has 8 divisors (see below), whose sum is σ = 14934876870. Its totient is φ = 3982633824.

The previous prime is 7965267637. The next prime is 7965267659. The reversal of 7965267656 is 6567625697.

It can be written as a sum of positive squares in only one way, i.e., 7891479556 + 73788100 = 88834^2 + 8590^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 7965267595 and 7965267604.

It is not an unprimeable number, because it can be changed into a prime (7965267659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497829221 + ... + 497829236.

Almost surely, 2^7965267656 is an apocalyptic number.

It is an amenable number.

7965267656 is a deficient number, since it is larger than the sum of its proper divisors (6969609214).

7965267656 is a wasteful number, since it uses less digits than its factorization.

7965267656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995658463 (or 995658459 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 59.

The square root of 7965267656 is about 89248.3481975997. The cubic root of 7965267656 is about 1997.1014392020.

The spelling of 7965267656 in words is "seven billion, nine hundred sixty-five million, two hundred sixty-seven thousand, six hundred fifty-six".