1265344061627 has 4 divisors (see below), whose sum is σ = 1265346311760. Its totient is φ = 1265341811496.

The previous prime is 1265344061567. The next prime is 1265344061633. The reversal of 1265344061627 is 7261604435621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1265344061627 - 2¹² = 1265344057531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1265344060627) 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, 531449 + ... + 1677237.

It is an arithmetic number, because the mean of its divisors is an integer number (316336577940).

Almost surely, 2^{1265344061627} is an apocalyptic number.

1265344061627 is a deficient number, since it is larger than the sum of its proper divisors (2250133).

1265344061627 is a wasteful number, since it uses less digits than its factorization.

1265344061627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250132.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 1265344061627 in words is "one trillion, two hundred sixty-five billion, three hundred forty-four million, sixty-one thousand, six hundred twenty-seven".