1726382865 has 32 divisors (see below), whose sum is σ = 2779603200. Its totient is φ = 914964480.

The previous prime is 1726382837. The next prime is 1726382869. The reversal of 1726382865 is 5682836271.

It is not a de Polignac number, because 1726382865 - 2¹⁵ = 1726350097 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1726382869) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2692945 + ... + 2693585.

It is an arithmetic number, because the mean of its divisors is an integer number (86862600).

Almost surely, 2^1726382865 is an apocalyptic number.

1726382865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1726382865 is a deficient number, since it is larger than the sum of its proper divisors (1053220335).

1726382865 is a wasteful number, since it uses less digits than its factorization.

1726382865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1497.

The product of its digits is 967680, while the sum is 48.

The square root of 1726382865 is about 41549.7637177397. The cubic root of 1726382865 is about 1199.6255463603.

It can be divided in two parts, 17263 and 82865, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 1726382865 in words is "one billion, seven hundred twenty-six million, three hundred eighty-two thousand, eight hundred sixty-five".