12379413465 has 40 divisors (see below), whose sum is σ = 22248574920. Its totient is φ = 6585297408.

The previous prime is 12379413439. The next prime is 12379413503. The reversal of 12379413465 is 56431497321.

12379413465 is a `hidden beast` number, since 123 + 79 + 413 + 46 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1874803401 + 10504610064 = 43299^2 + 102492^2 .

It is not a de Polignac number, because 12379413465 - 2⁹ = 12379412953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12379413465.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 118257 + ... + 196833.

It is an arithmetic number, because the mean of its divisors is an integer number (556214373).

Almost surely, 2^12379413465 is an apocalyptic number.

12379413465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12379413465 is a deficient number, since it is larger than the sum of its proper divisors (9869161455).

12379413465 is an equidigital number, since it uses as much as digits as its factorization.

12379413465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78983 (or 78974 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 12379413465 in words is "twelve billion, three hundred seventy-nine million, four hundred thirteen thousand, four hundred sixty-five".