123416777245 has 16 divisors (see below), whose sum is σ = 155935146240. Its totient is φ = 93512764224.

The previous prime is 123416777227. The next prime is 123416777269. The reversal of 123416777245 is 542777614321.

It is a cyclic number.

It is not a de Polignac number, because 123416777245 - 2¹⁷ = 123416646173 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 206284 + ... + 537946.

It is an arithmetic number, because the mean of its divisors is an integer number (9745946640).

Almost surely, 2^123416777245 is an apocalyptic number.

It is an amenable number.

123416777245 is a deficient number, since it is larger than the sum of its proper divisors (32518368995).

123416777245 is a wasteful number, since it uses less digits than its factorization.

123416777245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335604.

The product of its digits is 1975680, while the sum is 49.

The spelling of 123416777245 in words is "one hundred twenty-three billion, four hundred sixteen million, seven hundred seventy-seven thousand, two hundred forty-five".