123838019485 has 8 divisors (see below), whose sum is σ = 148948826040. Its totient is φ = 98841613824.

The previous prime is 123838019453. The next prime is 123838019533. The reversal of 123838019485 is 584910838321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7227380196 + 116610639289 = 85014^2 + 341483^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123838019485 - 2⁵ = 123838019453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28597840 + ... + 28602169.

It is an arithmetic number, because the mean of its divisors is an integer number (18618603255).

Almost surely, 2^123838019485 is an apocalyptic number.

It is an amenable number.

123838019485 is a deficient number, since it is larger than the sum of its proper divisors (25110806555).

123838019485 is an equidigital number, since it uses as much as digits as its factorization.

123838019485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57200447.

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 123838019485 in words is "one hundred twenty-three billion, eight hundred thirty-eight million, nineteen thousand, four hundred eighty-five".