123389415797 has 8 divisors (see below), whose sum is σ = 123884831160. Its totient is φ = 122894272960.

The previous prime is 123389415739. The next prime is 123389415817. The reversal of 123389415797 is 797514983321.

It can be written as a sum of positive squares in 4 ways, for example, as 41654116 + 123347761681 = 6454^2 + 351209^2 .

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 123389415797 - 2¹⁶ = 123389350261 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 (123389415707) 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 7 ways as a sum of consecutive naturals, for example, 864743 + ... + 997275.

It is an arithmetic number, because the mean of its divisors is an integer number (15485603895).

Almost surely, 2^123389415797 is an apocalyptic number.

It is an amenable number.

123389415797 is a deficient number, since it is larger than the sum of its proper divisors (495415363).

123389415797 is a wasteful number, since it uses less digits than its factorization.

123389415797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136263.

The product of its digits is 11430720, while the sum is 59.

The spelling of 123389415797 in words is "one hundred twenty-three billion, three hundred eighty-nine million, four hundred fifteen thousand, seven hundred ninety-seven".