794895281761 has 27 divisors (see below), whose sum is σ = 939175238547. Its totient is φ = 670816515600.

The previous prime is 794895281753. The next prime is 794895281771. The reversal of 794895281761 is 167182598497.

The square root of 794895281761 is 891569.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 66296465361 + 728598816400 = 257481^2 + 853580^2 .

It is not a de Polignac number, because 794895281761 - 2³ = 794895281753 is a prime.

It is a super-2 number, since 2×794895281761² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is not an unprimeable number, because it can be changed into a prime (794895281771) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 418144911 + ... + 418146811.

Almost surely, 2^794895281761 is an apocalyptic number.

794895281761 is the 891569-th square number.

794895281761 is the 445785-th centered octagonal number.

It is an amenable number.

794895281761 is a deficient number, since it is larger than the sum of its proper divisors (144279956786).

794895281761 is an frugal number, since it uses more digits than its factorization.

794895281761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3950 (or 1975 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 67.

The spelling of 794895281761 in words is "seven hundred ninety-four billion, eight hundred ninety-five million, two hundred eighty-one thousand, seven hundred sixty-one".