2694706721 has 8 divisors (see below), whose sum is σ = 3080520960. Its totient is φ = 2309106528.

The previous prime is 2694706717. The next prime is 2694706727. The reversal of 2694706721 is 1276074962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2694706721 - 2² = 2694706717 is a prime.

It is a super-2 number, since 2×2694706721² = 14522888624405143682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2694706727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25556 + ... + 77733.

It is an arithmetic number, because the mean of its divisors is an integer number (385065120).

Almost surely, 2^2694706721 is an apocalyptic number.

It is an amenable number.

2694706721 is a deficient number, since it is larger than the sum of its proper divisors (385814239).

2694706721 is a wasteful number, since it uses less digits than its factorization.

2694706721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107023.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 2694706721 is about 51910.5646376535. The cubic root of 2694706721 is about 1391.5660834919.

The spelling of 2694706721 in words is "two billion, six hundred ninety-four million, seven hundred six thousand, seven hundred twenty-one".