123695122449 has 4 divisors (see below), whose sum is σ = 164926829936. Its totient is φ = 82463414964.

The previous prime is 123695122399. The next prime is 123695122451. The reversal of 123695122449 is 944221596321.

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 not a de Polignac number, because 123695122449 - 2¹⁵ = 123695089681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123695122398 and 123695122407.

It is not an unprimeable number, because it can be changed into a prime (123695122459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20615853739 + ... + 20615853744.

It is an arithmetic number, because the mean of its divisors is an integer number (41231707484).

Almost surely, 2^123695122449 is an apocalyptic number.

It is an amenable number.

123695122449 is a deficient number, since it is larger than the sum of its proper divisors (41231707487).

123695122449 is an equidigital number, since it uses as much as digits as its factorization.

123695122449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41231707486.

The product of its digits is 933120, while the sum is 48.

The spelling of 123695122449 in words is "one hundred twenty-three billion, six hundred ninety-five million, one hundred twenty-two thousand, four hundred forty-nine".