1265446407463 has 12 divisors (see below), whose sum is σ = 1472872838520. Its totient is φ = 1084061975472.

The previous prime is 1265446407431. The next prime is 1265446407479. The reversal of 1265446407463 is 3647046445621.

It is not a de Polignac number, because 1265446407463 - 2⁵ = 1265446407431 is a prime.

It is a super-2 number, since 2×1265446407463² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1265446407463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265446407763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7130181 + ... + 7305502.

It is an arithmetic number, because the mean of its divisors is an integer number (122739403210).

Almost surely, 2^{1265446407463} is an apocalyptic number.

1265446407463 is a deficient number, since it is larger than the sum of its proper divisors (207426431057).

1265446407463 is a wasteful number, since it uses less digits than its factorization.

1265446407463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14437486 (or 14437479 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 1265446407463 in words is "one trillion, two hundred sixty-five billion, four hundred forty-six million, four hundred seven thousand, four hundred sixty-three".