123413772465 has 12 divisors (see below), whose sum is σ = 213917205684. Its totient is φ = 65820678624.

The previous prime is 123413772421. The next prime is 123413772491. The reversal of 123413772465 is 564277314321.

It is a happy number.

123413772465 is a `hidden beast` number, since 1 + 2 + 34 + 1 + 377 + 246 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40405824144 + 83007948321 = 201012^2 + 288111^2 .

It is not a de Polignac number, because 123413772465 - 2¹² = 123413768369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2742528277 = 123413772465 / (1 + 2 + 3 + 4 + 1 + 3 + 7 + 7 + 2 + 4 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 123413772465.

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 11 ways as a sum of consecutive naturals, for example, 1371264094 + ... + 1371264183.

It is an arithmetic number, because the mean of its divisors is an integer number (17826433807).

Almost surely, 2^123413772465 is an apocalyptic number.

123413772465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123413772465 is a deficient number, since it is larger than the sum of its proper divisors (90503433219).

123413772465 is a wasteful number, since it uses less digits than its factorization.

123413772465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742528288 (or 2742528285 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The spelling of 123413772465 in words is "one hundred twenty-three billion, four hundred thirteen million, seven hundred seventy-two thousand, four hundred sixty-five".