1265260626 has 48 divisors (see below), whose sum is σ = 3192156864. Its totient is φ = 354680352.

The previous prime is 1265260609. The next prime is 1265260627. The reversal of 1265260626 is 6260625621.

1265260626 is a `hidden beast` number, since 1 + 2 + 6 + 5 + 26 + 0 + 626 = 666.

It is not an unprimeable number, because it can be changed into a prime (1265260627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88056 + ... + 101411.

It is an arithmetic number, because the mean of its divisors is an integer number (66503268).

Almost surely, 2^1265260626 is an apocalyptic number.

1265260626 is an abundant number, since it is smaller than the sum of its proper divisors (1926896238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1265260626 is a wasteful number, since it uses less digits than its factorization.

1265260626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189535 (or 189532 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1265260626 is about 35570.5021893141. The cubic root of 1265260626 is about 1081.5833616940.

The spelling of 1265260626 in words is "one billion, two hundred sixty-five million, two hundred sixty thousand, six hundred twenty-six".