2678041687 has 8 divisors (see below), whose sum is σ = 2716803072. Its totient is φ = 2639309400.

The previous prime is 2678041679. The next prime is 2678041699. The reversal of 2678041687 is 7861408762.

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 2678041687 - 2³ = 2678041679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2678041687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678041987) 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, 236362 + ... + 247432.

It is an arithmetic number, because the mean of its divisors is an integer number (339600384).

Almost surely, 2^2678041687 is an apocalyptic number.

2678041687 is a deficient number, since it is larger than the sum of its proper divisors (38761385).

2678041687 is a wasteful number, since it uses less digits than its factorization.

2678041687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14549.

The product of its (nonzero) digits is 903168, while the sum is 49.

The square root of 2678041687 is about 51749.7989078219. The cubic root of 2678041687 is about 1388.6915013883.

The spelling of 2678041687 in words is "two billion, six hundred seventy-eight million, forty-one thousand, six hundred eighty-seven".