8629772779268 has 12 divisors (see below), whose sum is σ = 15102123085980. Its totient is φ = 4314880468992.

The previous prime is 8629772779267. The next prime is 8629772779273.

8629772779268 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 4134219425284 + 4495553353984 = 2033278^2 + 2120272^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8629772779192 and 8629772779201.

It is not an unprimeable number, because it can be changed into a prime (8629772779267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4357748 + ... + 6020756.

It is an arithmetic number, because the mean of its divisors is an integer number (1258510257165).

Almost surely, 2^{8629772779268} is an apocalyptic number.

It is an amenable number.

8629772779268 is a deficient number, since it is larger than the sum of its proper divisors (6472350306712).

8629772779268 is a wasteful number, since it uses less digits than its factorization.

8629772779268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960326 (or 2960324 counting only the distinct ones).

The product of its digits is 3584673792, while the sum is 80.

The spelling of 8629772779268 in words is "eight trillion, six hundred twenty-nine billion, seven hundred seventy-two million, seven hundred seventy-nine thousand, two hundred sixty-eight".