1265487376267 has 8 divisors (see below), whose sum is σ = 1282618440656. Its totient is φ = 1248439675392.

The previous prime is 1265487376189. The next prime is 1265487376291. The reversal of 1265487376267 is 7626737845621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1265487376267 is a prime.

It is a super-2 number, since 2×1265487376267² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1265487376199 and 1265487376208.

It is not an unprimeable number, because it can be changed into a prime (1265487376067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20810313 + ... + 20871034.

It is an arithmetic number, because the mean of its divisors is an integer number (160327305082).

Almost surely, 2^{1265487376267} is an apocalyptic number.

1265487376267 is a deficient number, since it is larger than the sum of its proper divisors (17131064389).

1265487376267 is an equidigital number, since it uses as much as digits as its factorization.

1265487376267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41681757.

The product of its digits is 142248960, while the sum is 64.

The spelling of 1265487376267 in words is "one trillion, two hundred sixty-five billion, four hundred eighty-seven million, three hundred seventy-six thousand, two hundred sixty-seven".