1826768817 has 12 divisors (see below), whose sum is σ = 2703024324. Its totient is φ = 1188142080.

The previous prime is 1826768803. The next prime is 1826768819. The reversal of 1826768817 is 7188676281.

It is a happy number.

1826768817 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 409698081 + 1417070736 = 20241^2 + 37644^2 .

It is not a de Polignac number, because 1826768817 - 2⁶ = 1826768753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1826768819) 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, 2474928 + ... + 2475665.

It is an arithmetic number, because the mean of its divisors is an integer number (225252027).

Almost surely, 2^1826768817 is an apocalyptic number.

It is an amenable number.

1826768817 is a deficient number, since it is larger than the sum of its proper divisors (876255507).

1826768817 is a wasteful number, since it uses less digits than its factorization.

1826768817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950640 (or 4950637 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 54.

The square root of 1826768817 is about 42740.7161498260. The cubic root of 1826768817 is about 1222.4408753570.

The spelling of 1826768817 in words is "one billion, eight hundred twenty-six million, seven hundred sixty-eight thousand, eight hundred seventeen".