13436757545 has 12 divisors (see below), whose sum is σ = 16273465740. Its totient is φ = 10650740544.

The previous prime is 13436757541. The next prime is 13436757547. The reversal of 13436757545 is 54575763431.

It can be written as a sum of positive squares in 6 ways, for example, as 1442784256 + 11993973289 = 37984^2 + 109517^2 .

It is not a de Polignac number, because 13436757545 - 2² = 13436757541 is a prime.

It is a super-2 number, since 2×13436757545² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13436757493 and 13436757502.

It is not an unprimeable number, because it can be changed into a prime (13436757541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53690 + ... + 172499.

It is an arithmetic number, because the mean of its divisors is an integer number (1356122145).

Almost surely, 2^13436757545 is an apocalyptic number.

It is an amenable number.

13436757545 is a deficient number, since it is larger than the sum of its proper divisors (2836708195).

13436757545 is an equidigital number, since it uses as much as digits as its factorization.

13436757545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226412 (or 226303 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 50.

The spelling of 13436757545 in words is "thirteen billion, four hundred thirty-six million, seven hundred fifty-seven thousand, five hundred forty-five".