13835331865 has 4 divisors (see below), whose sum is σ = 16602398244. Its totient is φ = 11068265488.

The previous prime is 13835331787. The next prime is 13835331877. The reversal of 13835331865 is 56813353831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56813353831 = 13 ⋅4370257987.

It can be written as a sum of positive squares in 2 ways, for example, as 4145685769 + 9689646096 = 64387^2 + 98436^2 .

It is a cyclic number.

It is not a de Polignac number, because 13835331865 - 2¹⁵ = 13835299097 is a prime.

It is a Duffinian number.

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, 1383533182 + ... + 1383533191.

It is an arithmetic number, because the mean of its divisors is an integer number (4150599561).

Almost surely, 2^13835331865 is an apocalyptic number.

It is an amenable number.

13835331865 is a deficient number, since it is larger than the sum of its proper divisors (2767066379).

13835331865 is an equidigital number, since it uses as much as digits as its factorization.

13835331865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767066378.

The product of its digits is 777600, while the sum is 46.

The spelling of 13835331865 in words is "thirteen billion, eight hundred thirty-five million, three hundred thirty-one thousand, eight hundred sixty-five".