13420761345 has 64 divisors (see below), whose sum is σ = 24245760000. Its totient is φ = 7042396608.

The previous prime is 13420761337. The next prime is 13420761373. The reversal of 13420761345 is 54316702431.

13420761345 is a `hidden beast` number, since 1 + 34 + 2 + 0 + 7 + 613 + 4 + 5 = 666.

It is not a de Polignac number, because 13420761345 - 2³ = 13420761337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3272106 + ... + 3276204.

It is an arithmetic number, because the mean of its divisors is an integer number (378840000).

Almost surely, 2^13420761345 is an apocalyptic number.

13420761345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13420761345 is a deficient number, since it is larger than the sum of its proper divisors (10824998655).

13420761345 is a wasteful number, since it uses less digits than its factorization.

13420761345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4499 (or 4493 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 13420761345 in words is "thirteen billion, four hundred twenty million, seven hundred sixty-one thousand, three hundred forty-five".