2679687450 has 144 divisors (see below), whose sum is σ = 8195743296. Its totient is φ = 621350400.

The previous prime is 2679687421. The next prime is 2679687457. The reversal of 2679687450 is 547869762.

2679687450 is a `hidden beast` number, since 26 + 7 + 96 + 87 + 450 = 666.

It is not an unprimeable number, because it can be changed into a prime (2679687457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 102082 + ... + 125618.

It is an arithmetic number, because the mean of its divisors is an integer number (56914884).

Almost surely, 2^2679687450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2679687450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4097871648).

2679687450 is an abundant number, since it is smaller than the sum of its proper divisors (5516055846).

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

2679687450 is a wasteful number, since it uses less digits than its factorization.

2679687450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23589 (or 23581 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The square root of 2679687450 is about 51765.6976191763. The cubic root of 2679687450 is about 1388.9759118333.

The spelling of 2679687450 in words is "two billion, six hundred seventy-nine million, six hundred eighty-seven thousand, four hundred fifty".