1253863262623 has 4 divisors (see below), whose sum is σ = 1255519621720. Its totient is φ = 1252206903528.

The previous prime is 1253863262609. The next prime is 1253863262627. The reversal of 1253863262623 is 3262623683521.

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 1253863262623 - 2⁵ = 1253863262591 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 (1253863262627) 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, 828178413 + ... + 828179926.

It is an arithmetic number, because the mean of its divisors is an integer number (313879905430).

Almost surely, 2^{1253863262623} is an apocalyptic number.

1253863262623 is a deficient number, since it is larger than the sum of its proper divisors (1656359097).

1253863262623 is an equidigital number, since it uses as much as digits as its factorization.

1253863262623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656359096.

The product of its digits is 3732480, while the sum is 49.

The spelling of 1253863262623 in words is "one trillion, two hundred fifty-three billion, eight hundred sixty-three million, two hundred sixty-two thousand, six hundred twenty-three".