2794661081 has 4 divisors (see below), whose sum is σ = 2794793652. Its totient is φ = 2794528512.

The previous prime is 2794661071. The next prime is 2794661087. The reversal of 2794661081 is 1801664972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 405015625 + 2389645456 = 20125^2 + 48884^2 .

It is a cyclic number.

It is not a de Polignac number, because 2794661081 - 2⁶ = 2794661017 is a prime.

It is a super-2 number, since 2×2794661081² = 15620261115312177122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2794661087) 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, 26840 + ... + 79433.

It is an arithmetic number, because the mean of its divisors is an integer number (698698413).

Almost surely, 2^2794661081 is an apocalyptic number.

It is an amenable number.

2794661081 is a deficient number, since it is larger than the sum of its proper divisors (132571).

2794661081 is a wasteful number, since it uses less digits than its factorization.

2794661081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132570.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 2794661081 is about 52864.5541076438. The cubic root of 2794661081 is about 1408.5633441191.

The spelling of 2794661081 in words is "two billion, seven hundred ninety-four million, six hundred sixty-one thousand, eighty-one".