2674257691 has 8 divisors (see below), whose sum is σ = 3098162144. Its totient is φ = 2260820160.

The previous prime is 2674257689. The next prime is 2674257727. The reversal of 2674257691 is 1967524762.

It is a happy number.

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 2674257691 - 2¹ = 2674257689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2674257491) 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, 2616180 + ... + 2617201.

It is an arithmetic number, because the mean of its divisors is an integer number (387270268).

Almost surely, 2^2674257691 is an apocalyptic number.

2674257691 is a deficient number, since it is larger than the sum of its proper divisors (423904453).

2674257691 is an equidigital number, since it uses as much as digits as its factorization.

2674257691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233461.

The product of its digits is 1270080, while the sum is 49.

The square root of 2674257691 is about 51713.2254940649. The cubic root of 2674257691 is about 1388.0371326857.

The spelling of 2674257691 in words is "two billion, six hundred seventy-four million, two hundred fifty-seven thousand, six hundred ninety-one".