2677091691 has 8 divisors (see below), whose sum is σ = 3570774480. Its totient is φ = 1784068352.

The previous prime is 2677091687. The next prime is 2677091699. The reversal of 2677091691 is 1961907762.

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 2677091691 - 2² = 2677091687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2677091691.

It is not an unprimeable number, because it can be changed into a prime (2677091699) 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, 155310 + ... + 171683.

It is an arithmetic number, because the mean of its divisors is an integer number (446346810).

Almost surely, 2^2677091691 is an apocalyptic number.

2677091691 is a deficient number, since it is larger than the sum of its proper divisors (893682789).

2677091691 is a wasteful number, since it uses less digits than its factorization.

2677091691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329725.

The product of its (nonzero) digits is 285768, while the sum is 48.

The square root of 2677091691 is about 51740.6193526904. The cubic root of 2677091691 is about 1388.5272759889.

The spelling of 2677091691 in words is "two billion, six hundred seventy-seven million, ninety-one thousand, six hundred ninety-one".