11735631745 has 4 divisors (see below), whose sum is σ = 14082758100. Its totient is φ = 9388505392.

The previous prime is 11735631731. The next prime is 11735631749. The reversal of 11735631745 is 54713653711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54713653711 = 71 ⋅770614841.

It can be written as a sum of positive squares in 2 ways, for example, as 7940948544 + 3794683201 = 89112^2 + 61601^2 .

It is a cyclic number.

It is not a de Polignac number, because 11735631745 - 2¹³ = 11735623553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11735631749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173563170 + ... + 1173563179.

It is an arithmetic number, because the mean of its divisors is an integer number (3520689525).

Almost surely, 2^11735631745 is an apocalyptic number.

It is an amenable number.

11735631745 is a deficient number, since it is larger than the sum of its proper divisors (2347126355).

11735631745 is an equidigital number, since it uses as much as digits as its factorization.

11735631745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347126354.

The product of its digits is 264600, while the sum is 43.

The spelling of 11735631745 in words is "eleven billion, seven hundred thirty-five million, six hundred thirty-one thousand, seven hundred forty-five".