2678181087 has 8 divisors (see below), whose sum is σ = 3575250304. Its totient is φ = 1783282968.

The previous prime is 2678181073. The next prime is 2678181097. The reversal of 2678181087 is 7801818762.

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

It is not a de Polignac number, because 2678181087 - 2²⁶ = 2611072223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678181067) 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, 539893 + ... + 544830.

It is an arithmetic number, because the mean of its divisors is an integer number (446906288).

Almost surely, 2^2678181087 is an apocalyptic number.

2678181087 is a deficient number, since it is larger than the sum of its proper divisors (897069217).

2678181087 is a wasteful number, since it uses less digits than its factorization.

2678181087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085549.

The product of its (nonzero) digits is 301056, while the sum is 48.

The square root of 2678181087 is about 51751.1457554323. The cubic root of 2678181087 is about 1388.7155961386.

The spelling of 2678181087 in words is "two billion, six hundred seventy-eight million, one hundred eighty-one thousand, eighty-seven".