123694908745 has 16 divisors (see below), whose sum is σ = 156986729280. Its totient is φ = 93303403200.

The previous prime is 123694908719. The next prime is 123694908763. The reversal of 123694908745 is 547809496321.

It is not a de Polignac number, because 123694908745 - 2¹¹ = 123694906697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123694908745.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3065386 + ... + 3105475.

It is an arithmetic number, because the mean of its divisors is an integer number (9811670580).

It is a 1-persistent number, because it is pandigital, but 2⋅123694908745 = 247389817490 is not.

Almost surely, 2^123694908745 is an apocalyptic number.

It is an amenable number.

123694908745 is a deficient number, since it is larger than the sum of its proper divisors (33291820535).

123694908745 is a wasteful number, since it uses less digits than its factorization.

123694908745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171096.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 123694908745 in words is "one hundred twenty-three billion, six hundred ninety-four million, nine hundred eight thousand, seven hundred forty-five".