1265788513067 has 16 divisors (see below), whose sum is σ = 1365158874240. Its totient is φ = 1166704912512.

The previous prime is 1265788513063. The next prime is 1265788513081. The reversal of 1265788513067 is 7603158875621.

It is a cyclic number.

It is not a de Polignac number, because 1265788513067 - 2² = 1265788513063 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1265788512997 and 1265788513015.

It is not an unprimeable number, because it can be changed into a prime (1265788513063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48084593 + ... + 48110909.

It is an arithmetic number, because the mean of its divisors is an integer number (85322429640).

Almost surely, 2^{1265788513067} is an apocalyptic number.

1265788513067 is a deficient number, since it is larger than the sum of its proper divisors (99370361173).

1265788513067 is a wasteful number, since it uses less digits than its factorization.

1265788513067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31622.

The product of its (nonzero) digits is 16934400, while the sum is 59.

The spelling of 1265788513067 in words is "one trillion, two hundred sixty-five billion, seven hundred eighty-eight million, five hundred thirteen thousand, sixty-seven".