1631412553263 has 4 divisors (see below), whose sum is σ = 2175216737688. Its totient is φ = 1087608368840.

The previous prime is 1631412553261. The next prime is 1631412553297. The reversal of 1631412553263 is 3623552141361.

It is a happy number.

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 1631412553263 - 2¹ = 1631412553261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1631412553261) 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 3 ways as a sum of consecutive naturals, for example, 271902092208 + ... + 271902092213.

It is an arithmetic number, because the mean of its divisors is an integer number (543804184422).

Almost surely, 2^{1631412553263} is an apocalyptic number.

1631412553263 is a deficient number, since it is larger than the sum of its proper divisors (543804184425).

1631412553263 is an equidigital number, since it uses as much as digits as its factorization.

1631412553263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543804184424.

The product of its digits is 388800, while the sum is 42.

The spelling of 1631412553263 in words is "one trillion, six hundred thirty-one billion, four hundred twelve million, five hundred fifty-three thousand, two hundred sixty-three".