123274663706553 has 4 divisors (see below), whose sum is σ = 164366218275408. Its totient is φ = 82183109137700.

The previous prime is 123274663706477. The next prime is 123274663706561. The reversal of 123274663706553 is 355607366472321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123274663706553 - 2²⁴ = 123274646929337 is a prime.

It is a super-3 number, since 3×123274663706553³ (a number of 43 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123274663776553) 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, 20545777284423 + ... + 20545777284428.

It is an arithmetic number, because the mean of its divisors is an integer number (41091554568852).

Almost surely, 2^{123274663706553} is an apocalyptic number.

It is an amenable number.

123274663706553 is a deficient number, since it is larger than the sum of its proper divisors (41091554568855).

123274663706553 is an equidigital number, since it uses as much as digits as its factorization.

123274663706553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41091554568854.

The product of its (nonzero) digits is 114307200, while the sum is 60.

The spelling of 123274663706553 in words is "one hundred twenty-three trillion, two hundred seventy-four billion, six hundred sixty-three million, seven hundred six thousand, five hundred fifty-three".