2687426942886 has 240 divisors, whose sum is σ = 7297361470080. Its totient is φ = 736242877440.

The previous prime is 2687426942881. The next prime is 2687426942927. The reversal of 2687426942886 is 6882496247862.

2687426942886 is a `hidden beast` number, since 2 + 6 + 87 + 4 + 269 + 4 + 288 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687426942881) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 26772406 + ... + 26872598.

It is an arithmetic number, because the mean of its divisors is an integer number (30405672792).

Almost surely, 2^{2687426942886} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2687426942886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3648680735040).

2687426942886 is an abundant number, since it is smaller than the sum of its proper divisors (4609934527194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2687426942886 is a wasteful number, since it uses less digits than its factorization.

2687426942886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100361 (or 100345 counting only the distinct ones).

The product of its digits is 891813888, while the sum is 72.

The spelling of 2687426942886 in words is "two trillion, six hundred eighty-seven billion, four hundred twenty-six million, nine hundred forty-two thousand, eight hundred eighty-six".