1461265634663 has 4 divisors (see below), whose sum is σ = 1547222436720. Its totient is φ = 1375308832608.

The previous prime is 1461265634651. The next prime is 1461265634701. The reversal of 1461265634663 is 3664365621641.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1461265634663 - 2⁶ = 1461265634599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461565634663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42978401003 + ... + 42978401036.

It is an arithmetic number, because the mean of its divisors is an integer number (386805609180).

Almost surely, 2^{1461265634663} is an apocalyptic number.

1461265634663 is a deficient number, since it is larger than the sum of its proper divisors (85956802057).

1461265634663 is an equidigital number, since it uses as much as digits as its factorization.

1461265634663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85956802056.

The product of its digits is 11197440, while the sum is 53.

The spelling of 1461265634663 in words is "one trillion, four hundred sixty-one billion, two hundred sixty-five million, six hundred thirty-four thousand, six hundred sixty-three".