13756461545 has 4 divisors (see below), whose sum is σ = 16507753860. Its totient is φ = 11005169232.

The previous prime is 13756461463. The next prime is 13756461553. The reversal of 13756461545 is 54516465731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3872323984 + 9884137561 = 62228^2 + 99419^2 .

It is a cyclic number.

It is not a de Polignac number, because 13756461545 - 2¹⁴ = 13756445161 is a prime.

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 13756461545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375646150 + ... + 1375646159.

It is an arithmetic number, because the mean of its divisors is an integer number (4126938465).

Almost surely, 2^13756461545 is an apocalyptic number.

It is an amenable number.

13756461545 is a deficient number, since it is larger than the sum of its proper divisors (2751292315).

13756461545 is an equidigital number, since it uses as much as digits as its factorization.

13756461545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2751292314.

The product of its digits is 1512000, while the sum is 47.

The spelling of 13756461545 in words is "thirteen billion, seven hundred fifty-six million, four hundred sixty-one thousand, five hundred forty-five".